1
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Kokko E, Choudhary MK, Mutanen A, Honkonen M, Tikkakoski A, Koskela JK, Hämäläinen M, Moilanen E, Viukari M, Matikainen N, Nevalainen PI, Pörsti I. Volume overload is a major characteristic in primary aldosteronism: a 3-year follow-up study. J Hypertens 2024; 42:1057-1065. [PMID: 38406920 PMCID: PMC11064919 DOI: 10.1097/hjh.0000000000003696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/05/2024] [Indexed: 02/27/2024]
Abstract
OBJECTIVES We examined haemodynamics, focusing on volume balance and forward and backward wave amplitudes, before and after 2.8 years of targeted treatment of primary aldosteronism. Patients with essential hypertension and normotensive individuals were examined for comparison ( n = 40 in each group). METHODS Recordings were performed using radial artery pulse wave analysis and whole-body impedance cardiography. Unilateral aldosteronism was treated with adrenalectomy ( n = 20), bilateral aldosteronism with spironolactone-based medication ( n = 20), and essential hypertension with standard antihypertensive agents. RESULTS Aortic SBP and DBP, forward and backward wave amplitudes, and systemic vascular resistance were equally elevated in primary aldosteronism and essential hypertension. All these haemodynamic variables were similarly reduced by the treatments. Primary aldosteronism presented with 1 litre (∼10%) extracellular water excess ( P < 0.001) versus the other groups, and this excess was normalized by treatment. Initial pulse wave velocity (PWV) was similarly increased in primary aldosteronism and essential hypertension, but final values remained higher in primary aldosteronism ( P < 0.001). In regression analyses, significant explanatory factors for treatment-induced forward wave amplitude reduction were decreased systemic vascular resistance ( β = 0.380) and reduced extracellular water volume ( β = 0.183). Explanatory factors for backward wave amplitude reduction were changes in forward wave amplitude ( β = 0.599), heart rate ( β = -0.427), and PWV ( β = 0.252). CONCLUSION Compared with essential hypertension, the principal haemodynamic difference in primary aldosteronism was higher volume load. Volume excess elevated forward wave amplitude, which was subsequently reduced by targeted treatment of primary aldosteronism, along with normalization of volume load. We propose that incorporating extracellular water evaluation alongside routine diagnostics could enhance the identification and diagnosis of primary aldosteronism.
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Affiliation(s)
- Eeva Kokko
- Faculty of Medicine and Health Technology, Tampere University
| | | | - Aapo Mutanen
- Faculty of Medicine and Health Technology, Tampere University
| | - Milja Honkonen
- Faculty of Medicine and Health Technology, Tampere University
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University
- Department of Clinical Physiology and Nuclear Medicine
| | - Jenni K. Koskela
- Faculty of Medicine and Health Technology, Tampere University
- Department of Internal Medicine, Tampere University Hospital
| | - Mari Hämäläinen
- Faculty of Medicine and Health Technology, Tampere University
- Immunopharmacology Research Group, Tampere University and Tampere University Hospital, Tampere
| | - Eeva Moilanen
- Faculty of Medicine and Health Technology, Tampere University
- Immunopharmacology Research Group, Tampere University and Tampere University Hospital, Tampere
| | - Marianna Viukari
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Niina Matikainen
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | | | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University
- Department of Internal Medicine, Tampere University Hospital
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2
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Bouquin H, Koskela JK, Tikkakoski A, Honkonen M, Hiltunen TP, Mustonen JT, Pörsti IH. Differences in heart rate responses to upright posture are associated with variations in the high-frequency power of heart rate variability. Am J Physiol Heart Circ Physiol 2024; 326:H479-H489. [PMID: 38133619 DOI: 10.1152/ajpheart.00567.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
High resting heart rate is a cardiovascular risk factor, but limited data exist on the underlying hemodynamics and reproducibility of supine-to-upright increase in heart rate. We recorded noninvasive hemodynamics in 574 volunteers [age, 44.9 yr; body mass index (BMI), 26.4 kg/m2; 49% male] during passive head-up tilt (HUT) using whole body impedance cardiography and radial artery tonometry. Heart rate regulation was evaluated using heart rate variability (HRV) analyses. Comparisons were made between quartiles of supine-to-upright heart rate changes, in which heart rate at rest ranged 62.6-64.8 beats/min (P = 0.285). The average upright increases in heart rate in the quartiles 1-4 were 4.7, 9.9, 13.5, and 21.0 beats/min, respectively (P < 0.0001). No differences were observed in the low-frequency power of HRV, whether in the supine or upright position, or in the high-frequency power of HRV in the supine position. Upright high-frequency power of HRV was highest in quartile 1 with lowest upright heart rate and lowest in quartile 4 with highest upright heart rate. Mean systolic blood pressure before and during HUT (126 vs. 108 mmHg) and the increase in systemic vascular resistance during HUT (650 vs. 173 dyn·s/cm5/m2) were highest in quartile 1 and lowest in quartile 4. The increases in heart rate during HUT on three separate occasions several weeks apart were highly reproducible (r = 0.682) among 215 participants. To conclude, supine-to-upright increase in heart rate is a reproducible phenotype with underlying differences in the modulation of cardiac parasympathetic tone and systemic vascular resistance. As heart rate at rest influences prognosis, future research should elucidate the prognostic significance of these phenotypic differences.NEW & NOTEWORTHY Subjects with similar supine heart rates are characterized by variable increases in heart rate during upright posture. Individual heart rate increases in response to upright posture are highly reproducible as hemodynamic phenotypes and present underlying differences in the modulation of cardiac parasympathetic tone and systemic vascular resistance. These results indicate that resting heart rate obtained in the supine position alone is not an optimal means of classifying people into groups with differences in cardiovascular function.
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Affiliation(s)
- Heidi Bouquin
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jenni K Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Milja Honkonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Timo P Hiltunen
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jukka T Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
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3
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Choudhary MK, Bouquin H, Hytönen J, Koskela JK, Niemelä O, Nevalainen PI, Mustonen J, Pörsti I. Blood Haemoglobin Concentration Is Directly and Independently Related with Pulse Wave Velocity, a Measure of Large Artery Stiffness. J Clin Med 2023; 12:7623. [PMID: 38137695 PMCID: PMC10743951 DOI: 10.3390/jcm12247623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/20/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
High haemoglobin level has been associated with metabolic syndrome, elevated blood pressure (BP), and increased mortality risk. In this cross-sectional study, we investigated the association of blood haemoglobin with haemodynamics in 743 subjects, using whole-body impedance cardiography and pulse wave analysis. The participants were allocated to sex-stratified haemoglobin tertiles with mean values 135, 144, and 154 g/L, respectively. The mean age was similar in all tertiles, while body mass index was higher in the highest versus the lowest haemoglobin tertile. The highest haemoglobin tertile had the highest erythrocyte and leukocyte counts, plasma C-reactive protein, uric acid, renin activity, and aldosterone. The lipid profile was less favourable and insulin sensitivity lower in the highest versus the lowest haemoglobin tertile. Aortic BP, cardiac output, and systemic vascular resistance were similar in all tertiles, while the pulse wave velocity (PWV) was higher in the highest versus the lowest haemoglobin tertile. In linear regression analysis, age (Beta 0.478), mean aortic BP (Beta 0.178), uric acid (Beta 0.150), heart rate (Beta 0.148), and aldosterone-to-renin ratio (Beta 0.123) had the strongest associations with PWV (p < 0.001 for all). Additionally, haemoglobin concentration was an explanatory factory for PWV (Beta 0.070, p = 0.028). To conclude, blood haemoglobin concentration had a small direct and independent association with a measure of large artery stiffness.
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Affiliation(s)
- Manoj Kumar Choudhary
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
| | - Heidi Bouquin
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
| | - Jere Hytönen
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
| | - Jenni K. Koskela
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
| | - Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, 60220 Seinäjoki, Finland;
| | - Pasi I. Nevalainen
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
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4
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Taurio J, Koskela J, Sinisalo M, Tikkakoski A, Niemelä O, Hämäläinen M, Moilanen E, Choudhary MK, Mustonen J, Nevalainen P, Pörsti I. Urine sodium excretion is related to extracellular water volume but not to blood pressure in 510 normotensive and never-treated hypertensive subjects. Blood Press 2023; 32:2170869. [PMID: 36708156 DOI: 10.1080/08037051.2023.2170869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
PURPOSE High sodium intake is an accepted risk factor for hypertension, while low Na+ intake has also been associated with increased risk of cardiovascular events. In this cross-sectional study, we examined the association of 24-h urinary Na+ excretion with haemodynamics and volume status. MATERIALS AND METHODS Haemodynamics were recorded in 510 normotensive and never-treated hypertensive subjects using whole-body impedance cardiography and tonometric radial artery pulse wave analysis. The results were examined in sex-specific tertiles of 24-h Na+ excretion, and comparisons between normotensive and hypertensive participants were also performed. Regression analysis was used to investigate factors associated with volume status. The findings were additionally compared to 28 patients with primary aldosteronism. RESULTS The mean values of 24-h urinary Na+ excretion in tertiles of the 510 participants were 94, 148 and 218 mmol, respectively. Average tertile age (43.4-44.7 years), office blood pressure and pulse wave velocity were corresponding in the tertiles. Plasma electrolytes, lipids, vitamin D metabolites, parathyroid hormone, renin activity, aldosterone, creatinine and insulin sensitivity did not differ in the tertiles. In supine laboratory recordings, there were no differences in aortic systolic and diastolic blood pressure, heart rate, cardiac output and systemic vascular resistance. Extracellular water volume was higher in the highest versus lowest tertile of Na+ excretion. In regression analysis, body surface area and 24-h Na+ excretion were independent explanatory variables for extracellular water volume. No differences in urine Na+ excretion and extracellular water volume were found between normotensive and hypertensive participants. When compared with the 510 participants, patients with primary aldosteronism had 6.0% excess in extracellular water (p = .003), and 24-h Na+ excretion was not related with extracellular water volume. CONCLUSION In the absence of mineralocorticoid excess, Na+ intake, as evaluated from 24-h Na+ excretion, predominantly influences extracellular water volume without a clear effect on blood pressure.
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Affiliation(s)
- Jyrki Taurio
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Jenni Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Marjatta Sinisalo
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Mari Hämäläinen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,The Immunopharmacology Research Group, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Eeva Moilanen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,The Immunopharmacology Research Group, Tampere University and Tampere University Hospital, Tampere, Finland
| | | | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Pasi Nevalainen
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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van Campen C(LM, Verheugt FW, Rowe PC, Visser FC. Orthostatic chronotropic incompetence in patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). IBRO Neurosci Rep 2023; 15:1-10. [PMID: 37303862 PMCID: PMC10250802 DOI: 10.1016/j.ibneur.2023.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/25/2023] [Accepted: 04/30/2023] [Indexed: 06/13/2023] Open
Abstract
Background Orthostatic intolerance (OI) is a core diagnostic criterion in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). The majority of ME/CFS patients have no evidence of hypotension or postural orthostatic tachycardia syndrome (POTS) during head-up tilt, but do show a significantly larger reduction in stroke volume index (SVI) when upright compared to controls. Theoretically a reduction in SVI should be accompanied by a compensatory increase in heart rate (HR). When there is an incomplete compensatory increase in HR, this is considered chronotropic incompetence. This study explored the relationship between HR and SVI to determine whether chronotropic incompetence was present during tilt testing in ME/CFS patients. Methods From a database of individuals who had undergone tilt testing with Doppler measurements for SVI both supine and end-tilt, we selected ME/CFS patients and healthy controls (HC) who had no evidence of POTS or hypotension during the test. To determine the relation between the HR increase and SVI decrease during the tilt test in patients, we calculated the 95% prediction intervals of this relation in HC. Chronotropic incompetence in patients was defined as a HR increase below the lower limit of the 95th % prediction interval of the HR increase in HC. Results We compared 362 ME/CFS patients with 52 HC. At end-tilt, tilt lasting for 15 (4) min, ME/CFS patients had a significantly lower SVI (22 (4) vs. 27 (4) ml/m2; p < 0.0001) and a higher HR (87 (11) vs. 78 (15) bpm; p < 0.0001) compared to HC. There was a similar relationship between HR and SVI between ME/CFS patients and HC in the supine position. During tilt ME/CFS patients had a lower HR for a given SVI; 37% had an inadequate HR increase. Chronotropic incompetence was more common in more severely affected ME/CFS patients. Conclusion These novel findings represent the first description of orthostatic chronotropic incompetence during tilt testing in ME/CFS patients.
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Affiliation(s)
| | | | - Peter C. Rowe
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Frans C. Visser
- Stichting CardioZorg, Planetenweg 5, 2132 HN Hoofddorp, The Netherlands
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6
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Kähönen E, Korpimäki S, Juonala M, Kähönen M, Lehtimäki T, Hutri-Kähönen N, Raitakari OT, Kivimäki M, Vahtera J. Neighbourhood deprivation in childhood and adulthood and risk of arterial stiffness: the Cardiovascular Risk in Young Finns study. Blood Press 2023; 32:2220037. [PMID: 37300298 DOI: 10.1080/08037051.2023.2220037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/09/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
Purpose: Individual socioeconomic status is associated with increased arterial stiffness, but limited data are available on the relations of neighbourhood deprivation with this vascular measure. We prospectively examined whether neighbourhood deprivation in childhood and adulthood predicts arterial stiffness indicated by pulse wave velocity (PWV).Materials and methods: The study population comprised 1,761 participants aged 3-18 years at baseline (1980) from the longitudinal Cardiovascular Risk in Young Finns cohort study. PWV was measured in 2007 by whole-body impedance cardiography at ages 30-45 years. Cumulative lifetime neighbourhood deprivation was assessed using data from socioeconomic circumstances in participants' lifetime residential neighbourhoods, categorised as low versus high deprivation.Results: High deprivation in childhood and adulthood was associated with higher PWV in adulthood after adjustment for age, sex, and place of birth (mean difference = 0.57 m/s, 95%CI = 0.26-0.88, P for trend = 0.0004). This association was attenuated but remained statistically significant after further adjustment for childhood parental socioeconomic status and adulthood individual socioeconomic status (mean difference = 0.37 m/s, 95%CI = 0.05-0.70, P for trend 0.048). Also, low individual socioeconomic status in adulthood was associated with higher PWV when adjusted for age, sex, place of birth, parental socioeconomic status in childhood, and lifetime neighbourhood deprivation (mean difference = 0.54 m/s, 95%CI = 0.23-0.84, P for trend 0.0001).Conclusion: These findings suggest that lifetime neighbourhood deprivation and low adulthood socioeconomic status are independent risk factors for increased arterial stiffness in adulthood.
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Affiliation(s)
- Erika Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Satu Korpimäki
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Markus Juonala
- Department of Medicine, Division of Medicine, University of Turku, Turku University Hospital, Turku, Finland
| | - Mika Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
- Finnish Cardiovascular Research Center-Tampere, Tampere University, Tampere, Finland
| | - Terho Lehtimäki
- Finnish Cardiovascular Research Center-Tampere, Tampere University, Tampere, Finland
- Fimlab Laboratories, Tampere, Finland
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Nina Hutri-Kähönen
- Tampere Centre for Skills Training and Simulation, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Olli T Raitakari
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
| | - Mika Kivimäki
- Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- UCL Brain Sciences, University College London, London, United Kingdom
| | - Jussi Vahtera
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
- Department of Public Health, University of Turku and Turku University Hospital, Turku, Finland
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7
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Taurio J, Hautaniemi EJ, Koskela JK, Eräranta A, Hämäläinen M, Tikkakoski A, Kettunen JA, Kähönen M, Niemelä O, Moilanen E, Mustonen J, Pörsti I. The characteristics of elevated blood pressure in abdominal obesity correspond to primary hypertension: a cross-sectional study. BMC Cardiovasc Disord 2023; 23:161. [PMID: 36973671 PMCID: PMC10045516 DOI: 10.1186/s12872-023-03150-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 02/27/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Obesity-related hypertension and the associated metabolic abnormalities are considered as a distinct hypertensive phenotype. Here we examined how abdominal fat content, as judged by waist:height ratio, influenced blood pressure and hemodynamic profile in normotensive subjects and never-treated hypertensive patients. METHODS The 541 participants (20-72 years) underwent physical examination and laboratory analyses and were divided into age and sex-adjusted quartiles of waist:height ratio. Supine hemodynamics were recorded using whole-body impedance cardiography, combined with analyses of radial tonometric pulse wave form and heart rate variability. RESULTS Mean waist:height ratios in the quartiles were 0.46, 0.51, 0.55 and 0.62. Radial and aortic blood pressure, systemic vascular resistance, pulse wave velocity, markers of glucose and lipid metabolism, leptin levels and C-reactive protein were higher in quartile 4 when compared with quartiles 1 and 2 (p < 0.05 for all). Cardiac index was lower in quartile 4 versus quartile 1, while no differences were seen in heart rate variability, augmentation index, plasma renin activity, and aldosterone concentration between the quartiles. Linear regression analyses showed independent associations of abdominal obesity with higher aortic systolic and diastolic blood pressure, systemic vascular resistance, and pulse wave velocity (p < 0.05 for waist:height ratio in all regression models). CONCLUSION Higher waist:height ratio was associated with elevated blood pressure, systemic vascular resistance, and arterial stiffness, but not with alterations in cardiac sympathovagal modulation or activation of the circulating renin-angiotensin-aldosterone system. Although obesity-related elevation of blood pressure has distinct phenotypic features, these results suggest that its main characteristics correspond those of primary hypertension. TRIAL REGISTRATION ClinicalTrails.gov NCT01742702 (date of registration 5th December 2012).
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Affiliation(s)
- Jyrki Taurio
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Elina J Hautaniemi
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Jenni K Koskela
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Mari Hämäläinen
- The Immunopharmacology Research group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jarkko A Kettunen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
- Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Eeva Moilanen
- The Immunopharmacology Research group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Ilkka Pörsti
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland.
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.
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8
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Harteveld LM, Blom NA, van Dijk JG, Reijntjes RH, van Someren PJ, Kerkhof FI, Kuipers IM, Rammeloo LAJ, de Geus EJC, ten Harkel ADJ. Orthostatic stress response in pediatric Fontan patients and the effect of ACE inhibition. PLoS One 2022; 17:e0273940. [PMID: 36048833 PMCID: PMC9436155 DOI: 10.1371/journal.pone.0273940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 08/18/2022] [Indexed: 11/18/2022] Open
Abstract
Background
Many cardiocirculatory mechanisms are involved in the adaptation to orthostatic stress. While these mechanisms may be impaired in Fontan patients. However, it is yet unclear how Fontan patients, who exhibit a critical fluid balance, respond to orthostatic stress. Angiotensin converting enzyme inhibitors are often prescribed to Fontan patients, but they may negatively influence orthostatic tolerance. Therefore, we evaluated the response to orthostatic stress in pediatric Fontan patients before and after treatment with enalapril.
Methods
Thirty-five Fontan patients (aged 14 years) with moderate-good systolic ventricular function without pre-existent enalapril treatment were included. Before and after a three-month enalapril treatment period, the hemodynamic response to head-up tilt test was evaluated by various parameters including cardiac index, blood pressure, cerebral blood flow, aortic stiffness and cardiac autonomous nervous activity. Thirty-four healthy subjects (aged 13 years) served as controls.
Results
Fontan patients had a decreased cerebral blood flow and increased aortic stiffness in the supine position compared to controls, while all other factors did not differ. Patients and controls showed a comparable response to head-up tilt test for most parameters. Twenty-seven patients completed the enalapril study with a mean dosage of 0.3±0.1mg/kg/day. Most parameters were unaffected by enalapril, only the percent decrease in cardiac index to tilt was higher after treatment, but the cardiac index during tilt was not lower (3.0L/min/m2 pre-enalapril versus 2.8L/min/m2 after treatment; P = 0.15).
Conclusion
Pediatric Fontan patients adequately respond to orthostasis with maintenance of blood pressure and cerebral blood flow and sufficient autonomic response. Enalapril treatment did not alter the response.
Clinical trial information
Scientific title: ACE inhibition in Fontan patients: its effect on body fluid regulation (sAFE-study).
The Netherlands National Trial Register: Trail NL6415. Registered 2017-07-20.
Trial information: https://www.trialregister.nl/trial/6415
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Affiliation(s)
- Lisette M. Harteveld
- The Center for Congenital Heart Disease Amsterdam–Leiden, Leiden, The Netherlands
- Willem-Alexander Children’s Hospital, Department of Pediatrics, Division of Pediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
- * E-mail:
| | - Nico A. Blom
- The Center for Congenital Heart Disease Amsterdam–Leiden, Leiden, The Netherlands
- Willem-Alexander Children’s Hospital, Department of Pediatrics, Division of Pediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Pediatric Cardiology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - J. Gert van Dijk
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Robert H. Reijntjes
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Paul J. van Someren
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Fabian I. Kerkhof
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Irene M. Kuipers
- The Center for Congenital Heart Disease Amsterdam–Leiden, Leiden, The Netherlands
- Department of Pediatric Cardiology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Lukas A. J. Rammeloo
- The Center for Congenital Heart Disease Amsterdam–Leiden, Leiden, The Netherlands
- Department of Pediatric Cardiology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Eco J. C. de Geus
- Department of Biological Psychology, Faculty of Human Behavioral and Movement Sciences, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Arend D. J. ten Harkel
- The Center for Congenital Heart Disease Amsterdam–Leiden, Leiden, The Netherlands
- Willem-Alexander Children’s Hospital, Department of Pediatrics, Division of Pediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
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9
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Meng Y, Buscot MJ, Juonala M, Wu F, Armstrong MK, Fraser BJ, Pahkala K, Hutri-Kähönen N, Kähönen M, Laitinen T, Viikari JSA, Raitakari OT, Magnussen CG, Sharman JE. Relative Contribution of Blood Pressure in Childhood, Young- and Mid-Adulthood to Large Artery Stiffness in Mid-Adulthood. J Am Heart Assoc 2022; 11:e024394. [PMID: 35699171 PMCID: PMC9238667 DOI: 10.1161/jaha.121.024394] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background Blood pressure associates with arterial stiffness, but the contribution of blood pressure at different life stages is unclear. We examined the relative contribution of childhood, young‐ and mid‐adulthood blood pressure to mid‐adulthood large artery stiffness. Methods and Results The sample comprised 1869 participants from the Cardiovascular Risk in Young Finns Study who had blood pressure measured in childhood (6–18 years), young‐adulthood (21–30 years), and mid‐adulthood (33–45 years). Markers of large artery stiffness were pulse wave velocity and carotid distensibility recorded in mid‐adulthood. Bayesian relevant life course exposure models were used. For each 10‐mm Hg higher cumulative systolic blood pressure across the life stages, pulse wave velocity was 0.56 m/s higher (95% credible interval: 0.49 to 0.63) and carotid distensibility was 0.13%/10 mm Hg lower (95% credible interval: −0.16 to −0.10). Of these total contributions, the highest contribution was attributed to mid‐adulthood systolic blood pressure (relative weights: pulse wave velocity, childhood: 2.6%, young‐adulthood: 5.4%, mid‐adulthood: 92.0%; carotid distensibility, childhood: 5.6%; young‐adulthood: 10.1%; mid‐adulthood: 84.3%), with the greatest individual contribution coming from systolic blood pressure at the time point when pulse wave velocity and carotid distensibility were measured. The results were consistent for diastolic blood pressure, mean arterial pressure, and pulse pressure. Conclusions Although mid‐adulthood blood pressure contributed most to mid‐adulthood large artery stiffness, we observed small contributions from childhood and young‐adulthood blood pressure. These findings suggest that the burden posed by arterial stiffness might be reduced by maintaining normal blood pressure levels at each life stage, with mid‐adulthood a critical period for controlling blood pressure.
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Affiliation(s)
- Yaxing Meng
- Menzies Institute for Medical ResearchUniversity of Tasmania Hobart Australia
| | - Marie-Jeanne Buscot
- Menzies Institute for Medical ResearchUniversity of Tasmania Hobart Australia
| | - Markus Juonala
- Department of Medicine University of Turku Turku Finland.,Division of Medicine Turku University Hospital Turku Finland
| | - Feitong Wu
- Menzies Institute for Medical ResearchUniversity of Tasmania Hobart Australia
| | - Matthew K Armstrong
- Menzies Institute for Medical ResearchUniversity of Tasmania Hobart Australia
| | - Brooklyn J Fraser
- Menzies Institute for Medical ResearchUniversity of Tasmania Hobart Australia
| | - Katja Pahkala
- Research Centre of Applied and Preventive Cardiovascular Medicine University of Turku Turku Finland.,Centre for Population Health Research University of TurkuTurku University Hospital Turku Finland.,Paavo Nurmi Centre Sports & Exercise Medicine Unit Department of Physical Activity and Health University of Turku Turku Finland
| | - Nina Hutri-Kähönen
- Tampere Centre for Skills Training and Simulation Tampere University Tampere Finland
| | - Mika Kähönen
- Department of Clinical Physiology Tampere University HospitalFaculty of Medicine and Health TechnologyTampere University Tampere Finland
| | - Tomi Laitinen
- Department of Clinical Physiology and Nuclear Medicine Kuopio University HospitalUniversity of Eastern Finland Kuopio Finland
| | - Jorma S A Viikari
- Department of Medicine University of Turku Turku Finland.,Division of Medicine Turku University Hospital Turku Finland
| | - Olli T Raitakari
- Research Centre of Applied and Preventive Cardiovascular Medicine University of Turku Turku Finland.,Centre for Population Health Research University of TurkuTurku University Hospital Turku Finland.,Department of Clinical Physiology and Nuclear Medicine Turku University Hospital Turku Finland
| | - Costan G Magnussen
- Menzies Institute for Medical ResearchUniversity of Tasmania Hobart Australia.,Research Centre of Applied and Preventive Cardiovascular Medicine University of Turku Turku Finland.,Centre for Population Health Research University of TurkuTurku University Hospital Turku Finland.,Baker Heart and Diabetes Institute Melbourne Victoria Australia
| | - James E Sharman
- Menzies Institute for Medical ResearchUniversity of Tasmania Hobart Australia
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10
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Koskela JK, Tahvanainen A, Tikkakoski AJ, Kangas P, Uitto M, Viik J, Kähönen M, Mustonen J, Pörsti I. Resting heart rate predicts cardiac autonomic modulation during passive head-up tilt in subjects without cardiovascular diseases. SCAND CARDIOVASC J 2022; 56:138-147. [PMID: 35652524 DOI: 10.1080/14017431.2022.2079713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Background Resting heart rate (HR) and its variability (HRV) reflects the cardiac sympathovagal balance that is stimulated by head-up tilting. HRV is influenced by the level of HR, but how much HRV offers additional information about cardiac autonomic tone than HR alone remains unresolved. We examined the relation of resting HR with HRV during head-up tilt. Methods. Hemodynamics of 569 subjects without known cardiovascular diseases and medications with direct cardiovascular effects were recorded using whole-body impedance cardiography, radial pulse wave analysis, and electrocardiography-based HRV analysis during passive head-up tilt. Results. Higher low frequency to the high-frequency ratio (LF/HF) of HRV (reflecting sympathovagal balance) was associated with higher HR in supine (p < .05, both linear regression analysis and variance analysis comparing HR tertiles) and upright postures (p < .001, linear regression analysis). The association of HR with HRV during tilt-testing remained significant when the HR dependence of HRV was mathematically weakened by dividing the HRV power spectra with the fourth power of the average RR-interval. Conclusion. Higher resting HR is related to higher LF/HF both supine and upright, reflecting elevated sympathetic influence on cardiac autonomic modulation. Lower resting HR is associated with lower resting LF/HF, while the differences in LF/HF between the HR tertiles were minor during head-up tilt, suggesting a greater change in cardiac sympathovagal balance in response to upright posture in those with lowest resting HR. Altogether, resting HR well predicts HRV levels during head-up tilt.Trial registration: Clinicaltrialsregister.eu 2006-002065-39, first registered 5 May 2006. ClinicalTrials.gov NCT01742702, first registered 5 December 2012.
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Affiliation(s)
- Jenni K Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Anna Tahvanainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Heart Hospital, Tampere University Hospital, Tampere, Finland
| | - Antti J Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Pauliina Kangas
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Marko Uitto
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jari Viik
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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11
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Koskela JK, Vääräniemi K, Tahvanainen AMH, Mustonen J, Mäkelä S, Tikkakoski AJ, Pörsti I. Disparate Information Provided by Pulse Wave Velocity versus Other Measures of Aortic Compliance in End-Stage Renal Disease. Nephron Clin Pract 2021; 146:11-21. [PMID: 34515178 DOI: 10.1159/000518174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/15/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Unfavorable changes in cardiac and arterial function are related to poor prognosis in chronic kidney disease (CKD). We compared hemodynamic profiles between subjects with end-stage renal disease and 2 control groups with corresponding pulse wave velocities (PWVs). METHODS Noninvasive hemodynamics were recorded during passive head-up tilt in CKD stage 5 patients (n = 35), patients with primary hypertension (n = 35, n = 30 with antihypertensive medications), and subjects without cardiovascular or renal diseases and cardiovascular medications (n = 70). The groups were selected to have corresponding age, sex, body mass index, and PWV. Hemodynamic data were captured using whole-body impedance cardiography and radial tonometric pulse wave analysis. RESULTS Supine blood pressure did not differ between the groups, but upright diastolic blood pressure was lower in CKD patients than in the 2 control groups (p ≤ 0.001 for both, RANOVA). Despite similar PWV, supine aortic pulse pressure was higher in CKD patients versus nonmedicated subjects (p = 0.029). Two additional measures indicated reduced aortic compliance in CKD patients versus both control groups: lower ratio of stroke index to aortic pulse pressure (p ≤ 0.023) and higher aortic characteristic impedance (p ≤ 0.003). The subendocardial viability ratio was lower in the CKD group than in both control groups (p ≤ 0.039). CONCLUSION In the absence of differences in PWV, higher aortic pulse pressure and characteristic impedance, and lower ratio of stroke index to aortic pulse pressure, suggest reduced aortic compliance and impaired left ventricular function in CKD patients. A lower subendocardial viability ratio predisposes the CKD patients to impaired cardiac oxygen supply versus hypertensive patients and nonmedicated controls.
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Affiliation(s)
- Jenni Kaarina Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Kati Vääräniemi
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Central Hospital of Central Finland, Jyväskylä, Finland
| | - Anna Mari Helena Tahvanainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Heart Hospital, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Satu Mäkelä
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Johannes Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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12
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Hamid H, Kurra V, Choudhary MK, Bouquin H, Niemelä O, Kähönen MAP, Mustonen JT, Pörsti IH, Koskela JK. Plasma uric acid is related to large arterial stiffness but not to other hemodynamic variables: a study in 606 normotensive and never-medicated hypertensive subjects. BMC Cardiovasc Disord 2021; 21:257. [PMID: 34039285 PMCID: PMC8152327 DOI: 10.1186/s12872-021-02072-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 05/19/2021] [Indexed: 11/30/2022] Open
Abstract
Background Elevated level of plasma uric acid (PUA) has been associated with cardiovascular disease, but whether uric acid is an independent risk factor or merely a marker remains controversial. Methods We investigated in a cross-sectional setting the association of PUA with hemodynamics in 606 normotensive and never-medicated hypertensive subjects (295 men, 311 women, age range 19–73 years) without cardiovascular disease or gout. In all except 15 individuals, PUA was within the normal range. Supine hemodynamics were recorded using whole-body impedance cardiography and radial tonometric pulse wave analysis. Results The mean concentrations of PUA in age, sex and body mass index adjusted quartiles were 234, 278, 314, and 373 µmol/l, respectively. The highest PUA quartile presented with higher aortic to popliteal pulse wave velocity (PWV) than the lowest quartile (8.7 vs. 8.2 m/s, p = 0.026) in analyses additionally adjusted for plasma concentrations of C-reactive protein, low density lipoprotein cholesterol, triglycerides, and mean aortic blood pressure. No differences in radial and aortic blood pressure, wave reflections, heart rate, cardiac output, and systemic vascular resistance were observed between the quartiles. In linear regression analysis, PUA was an independent explanatory factor for PWV (β = 0.168, p < 0.001, R2 of the model 0.591), but not for systolic or diastolic blood pressure. When the regression analysis was performed separately for men and women, PUA was an independent predictor of PWV in both sexes. Conclusions PUA concentration was independently and directly associated with large arterial stiffness in individuals without cardiovascular disease and PUA levels predominantly within the normal range. Trial registration ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Humam Hamid
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Venla Kurra
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Manoj Kumar Choudhary
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Heidi Bouquin
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Onni Niemelä
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Mika A P Kähönen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka T Mustonen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland. .,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland.
| | - Jenni K Koskela
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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13
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Haapala M, Lyytikäinen LP, Peltokangas M, Koivistoinen T, Hutri-Kähönen N, Laurila MM, Mäntysalo M, Raitakari OT, Kähönen M, Lehtimäki T, Vehkaoja A, Oksala N. Impedance plethysmography-based method in the assessment of subclinical atherosclerosis. Atherosclerosis 2021; 319:101-107. [PMID: 33503553 DOI: 10.1016/j.atherosclerosis.2021.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/04/2020] [Accepted: 01/07/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND AND AIMS The aim of this study was to examine an association of individual and combined pulse waveform parameters derived from bioimpedance measurements, that is pulse waves from a distal impedance plethysmographic (IPG), a whole-body impedance cardiographic (ICG) and transformed distal impedance plethysmographic (tIPG) signals, with markers of subclinical atherosclerosis, i.e. carotid intima-media thickness (cIMT), brachial artery flow-mediated dilation (FMD) and carotid artery distensibility (Cdist). The level of the association was also compared for arterial pulse wave velocity (PWV) and cIMT, FMD, and Cdist. METHODS IPG, ICG, tIPG signals were measured from 1741 Finnish adults aged 30-45 years. The association between pulse wave parameters and cIMT, FMD and Cdist was studied using bootstrapped stepwise Akaike's Information Criterion method resulting in selection of parameters other than PWV, i.e. parameters having stronger association with cIMT, FMD and Cdist than PWV, in the model. Then risk scores were calculated from the selected pulse wave parameters and their association between cIMT, FMD and Cdist was studied with multivariable linear regression analysis. RESULTS The risk score was found to be the third strongest predictor of subclinical atherosclerosis as indicated by cIMT measurement, the second strongest predictor of FMD and the strongest predictor of Cdist. These findings show that several individual pulse wave parameters were associated more strongly with cIMT, FMD, and Cdist than PWV when adjusted with clinical risk factors. CONCLUSIONS Impedance based pulse waveform analysis provides a useful tool for assessing cardiovascular risk and estimating presence of structural changes in the vasculature.
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Affiliation(s)
- Mira Haapala
- Finnish Cardiovascular Research Center - Tampere, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Faculty of Medicine and Health Technology, Arvo Ylpön Katu 34 (33520 Tampere) P.O. Box 100, FI-33014 Tampere University, Finland
| | - Leo-Pekka Lyytikäinen
- Finnish Cardiovascular Research Center - Tampere, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Faculty of Medicine and Health Technology, Arvo Ylpön Katu 34 (33520 Tampere) P.O. Box 100, FI-33014 Tampere University, Finland; Department of Clinical Chemistry, Fimlab Laboratories, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Department of Cardiology, Heart Center, Tampere University Hospital, Elämänaukio 1, 33520, Tampere, Finland
| | - Mikko Peltokangas
- Finnish Cardiovascular Research Center - Tampere, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Faculty of Medicine and Health Technology, Arvo Ylpön Katu 34 (33520 Tampere) P.O. Box 100, FI-33014 Tampere University, Finland
| | - Teemu Koivistoinen
- Department of Emergency Medicine, Kanta-Häme Central Hospital, Ahvenistontie 20, 13530, Hämeenlinna, Finland; Department of Clinical Physiology, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland
| | - Nina Hutri-Kähönen
- Department of Pediatrics, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland
| | - Mika-Matti Laurila
- Faculty of Information Technology and Communication Sciences, Tampere University, Korkeakoulunkatu 3 (33720 Tampere), P.O. Box 692, FI-33014 Tampere University, Finland
| | - Matti Mäntysalo
- Faculty of Information Technology and Communication Sciences, Tampere University, Korkeakoulunkatu 3 (33720 Tampere), P.O. Box 692, FI-33014 Tampere University, Finland
| | - Olli T Raitakari
- Centre for Population Health Research, University of Turku and Turku University Hospital, Kiinamyllynkatu 10 (20520 Turku), FI-20014 University of Turku, Finland; Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Kiinamyllynkatu 10 (20520 Turku), FI-20014 University of Turku, Finland; Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Kiinamyllynkatu 10 (20520 Turku), FI-20014 University of Turku, Finland
| | - Mika Kähönen
- Finnish Cardiovascular Research Center - Tampere, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Department of Clinical Physiology, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland
| | - Terho Lehtimäki
- Finnish Cardiovascular Research Center - Tampere, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Faculty of Medicine and Health Technology, Arvo Ylpön Katu 34 (33520 Tampere) P.O. Box 100, FI-33014 Tampere University, Finland; Department of Clinical Chemistry, Fimlab Laboratories, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland
| | - Antti Vehkaoja
- Finnish Cardiovascular Research Center - Tampere, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Faculty of Medicine and Health Technology, Arvo Ylpön Katu 34 (33520 Tampere) P.O. Box 100, FI-33014 Tampere University, Finland
| | - Niku Oksala
- Finnish Cardiovascular Research Center - Tampere, Arvo Ylpön Katu 34 (33520 Tampere), P.O. Box 100, FI-33014 Tampere University, Finland; Faculty of Medicine and Health Technology, Arvo Ylpön Katu 34 (33520 Tampere) P.O. Box 100, FI-33014 Tampere University, Finland; Vascular Centre, Tampere University Hospital, Elämänaukio 2 (33520 Tampere), P.O. Box 2000, Tampere, 33521, Finland.
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14
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Oinonen L, Tikkakoski A, Koskela J, Eräranta A, Kähönen M, Niemelä O, Mustonen J, Pörsti I. Parathyroid hormone may play a role in the pathophysiology of primary hypertension. Endocr Connect 2021; 10:54-65. [PMID: 33289696 PMCID: PMC7923049 DOI: 10.1530/ec-20-0446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 12/03/2020] [Indexed: 12/15/2022]
Abstract
Parathyroid hormone has been related with the risk of hypertension, but the matter remains controversial. We examined the association of parathyroid hormone with central blood pressure and its determinants in 622 normotensive or never-treated hypertensive subjects aged 19-72 years without diabetes, cardiovascular or renal disease, or cardiovascular medications. The methods were whole-body impedance cardiography and analyses of pulse wave and heart rate variability. Cardiovascular function was examined in sex-specific tertiles of plasma parathyroid hormone (mean concentrations 3.0, 4.3 and 6.5 pmol/L, respectively) during head-up tilt. Explanatory factors for haemodynamics were further investigated using linear regression analyses. Mean age was 45.0 (s.d. 11.7) years, BMI 26.8 (4.4) kg/m2, seated office blood pressure 141/90 (21/12) mmHg, and 309 subjects (49.7%) were male. Only five participants had elevated plasma parathyroid hormone and calcium concentrations. Highest tertile of parathyroid hormone presented with higher supine and upright aortic diastolic blood pressure (P < 0.01) and augmentation index (P < 0.01), and higher upright systemic vascular resistance (P < 0.05) than the lowest tertile. The tertiles did not present with differences in pulse wave velocity, cardiac output, or measures of heart rate variability. In linear regression analyses, parathyroid hormone was an independent explanatory factor for aortic systolic (P = 0.005) and diastolic (P = 0.002) blood pressure, augmentation index (P = 0.002), and systemic vascular resistance (P = 0.031). To conclude, parathyroid hormone was directly related to central blood pressure, wave reflection, and systemic vascular resistance in subjects without cardiovascular comorbidities and medications. Thus, parathyroid hormone may play a role in the pathophysiology of primary hypertension.
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Affiliation(s)
- Lasse Oinonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Correspondence should be addressed to L Oinonen:
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jenni Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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15
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Choudhary MK, Värri E, Matikainen N, Koskela J, Tikkakoski AJ, Kähönen M, Niemelä O, Mustonen J, Nevalainen PI, Pörsti I. Primary aldosteronism: Higher volume load, cardiac output and arterial stiffness than in essential hypertension. J Intern Med 2021; 289:29-41. [PMID: 32463949 DOI: 10.1111/joim.13115] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/05/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND The diagnostics of primary aldosteronism (PA) are usually carried out in patients taking antihypertensive medications. We compared haemodynamics between medicated PA, medicated essential hypertension (EH), never-medicated EH and normotensive controls (n = 130 in all groups). METHODS The hypertensive groups were matched for age (53 years), sex (84 male/46 female) and body mass index (BMI) (30 kg m-2 ); normotensive controls had similar sex distribution (age 48 years, BMI 27 kg m-2 ). Haemodynamics were recorded using whole-body impedance cardiography and radial pulse wave analysis, and the results were adjusted as appropriate. Radial blood pressure recordings were calibrated by brachial blood pressure measurements from the contralateral arm. RESULTS Radial and aortic systolic and diastolic blood pressure was similar in PA and never-medicated EH, and higher than in medicated EH and normotensive controls (P ≤ 0.001 for all comparisons). Extracellular water balance was ~ 4% higher in PA than in all other groups (P < 0.05 for all), whilst cardiac output was ~ 8% higher in PA than in medicated EH (P = 0.012). Systemic vascular resistance and augmentation index were similarly increased in PA and both EH groups when compared with controls. Pulse wave velocity was higher in PA and never-medicated EH than in medicated EH and normotensive controls (P ≤ 0.033 for all comparisons). CONCLUSIONS Medicated PA patients presented with corresponding systemic vascular resistance and wave reflection, but higher extracellular water volume, cardiac output and arterial stiffness than medicated EH patients. Whether the systematic evaluation of these features would benefit the clinical diagnostics of PA remains to be studied in future.
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Affiliation(s)
- M K Choudhary
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - E Värri
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - N Matikainen
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - J Koskela
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - A J Tikkakoski
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - M Kähönen
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - O Niemelä
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - J Mustonen
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - P I Nevalainen
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - I Pörsti
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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16
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Kokko E, Nevalainen PI, Choudhary MK, Koskela J, Tikkakoski A, Huhtala H, Niemelä O, Viukari M, Mustonen J, Matikainen N, Pörsti I. Aldosterone-to-renin ratio is related to arterial stiffness when the screening criteria of primary aldosteronism are not met. Sci Rep 2020; 10:19804. [PMID: 33188272 PMCID: PMC7666146 DOI: 10.1038/s41598-020-76718-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/02/2020] [Indexed: 11/28/2022] Open
Abstract
Aldosterone-to-renin ratio (ARR) is a screening tool for primary aldosteronism (PA), but the significance of ARR when the PA criteria are not met remains largely unknown. In this cross-sectional study we investigated the association of ARR with haemodynamic variables in 545 normotensive and never-medicated hypertensive subjects (267 men, 278 women, age range 19-72 years) without suspicion of PA. Supine haemodynamic data was recorded using whole-body impedance cardiography and radial tonometric pulse wave analysis. In sex-adjusted quartiles of ARR, determined as serum aldosterone to plasma renin activity ratio, the mean values were 282, 504, 744 and 1467 pmol/µg of angiotensin I/h, respectively. The only difference in haemodynamic variables between the ARR quartiles was higher pulse wave velocity (PWV) in the highest quartile versus other quartiles (p = 0.004), while no differences in blood pressure (BP), heart rate, wave reflections, cardiac output or systemic vascular resistance were observed between the quartiles. In linear regression analysis with stepwise elimination, ARR was an independent explanatory factor for PWV (β = 0.146, p < 0.001, R2 of the model 0.634). In conclusion, ARR was directly and independently associated with large arterial stiffness in individuals without clinical suspicion of PA. Therefore, ARR could serve as a clinical marker of cardiovascular risk.Trial registration: ClinicalTrails.gov: NCT01742702.
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Affiliation(s)
- Eeva Kokko
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Pasi I Nevalainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | | | - Jenni Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Onni Niemelä
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Clinical Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Marianna Viukari
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Niina Matikainen
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland.
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17
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Headid RJ, Pekas EJ, Wooden TK, Son WM, Layec G, Shin J, Park SY. Impacts of prolonged sitting with mild hypercapnia on vascular and autonomic function in healthy recreationally active adults. Am J Physiol Heart Circ Physiol 2020; 319:H468-H480. [PMID: 32648821 DOI: 10.1152/ajpheart.00354.2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Prolonged sitting, which is known to impair peripheral vascular function, often occurs in spaces (e.g., offices) with mild hypercapnic atmospheres. However, the effects of prolonged sitting in hypercapnic conditions on vascular function are unknown. Therefore, the purpose of this study was to investigate the effects of prolonged sitting in mild hypercapnic conditions on vascular and autonomic function in humans. Twelve healthy young adults participated in two experimental visits that consisted of sitting for 2.5 h in a control condition [normal atmospheric conditions sitting (PSIT)] or a mild hypercapnic condition (HCAP; CO2 = 1,500 ppm). During each visit, heart rate variability (HRV), blood pressure (BP), pulse wave velocity (PWV), augmentation index (AIx), brachial and popliteal artery flow-mediated dilation (FMD), and near-infrared spectroscopy (NIRS) were assessed before and after prolonged sitting. Sitting significantly decreased AIx in both groups (P < 0.05). Brachial and popliteal FMD were reduced with sitting (P < 0.05), and the reduction in popliteal FMD was amplified by HCAP (P < 0.05). Baseline microvascular oxygenation was decreased following sitting in both groups (P < 0.05). However, microvascular reoxygenation upon cuff release was slower only in HCAP (P < 0.05). HRV, HR, BP, and PWV did not significantly change with sitting in either group (P > 0.05). We conclude that prolonged sitting attenuated both brachial and popliteal endothelial function and was associated with perturbed microcirculation. Additionally, mild hypercapnic conditions further impaired peripheral endothelial and microvascular function. Together, these findings suggest that prolonged sitting is accompanied by a host of deleterious effects on the vasculature, which are exacerbated by mild hypercapnia.NEW & NOTEWORTHY The results of this study reveal that prolonged sitting attenuates endothelial function and microvascular function. Additionally, prolonged sitting with mild hypercapnia, which is similar to everyday environments, further exacerbates peripheral endothelial function and microvascular function.
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Affiliation(s)
- Ronald J Headid
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, Nebraska
| | - Elizabeth J Pekas
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, Nebraska
| | - TeSean K Wooden
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, Nebraska
| | - Won-Mok Son
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, Nebraska
| | - Gwenael Layec
- Department of Kinesiology, University of Massachusetts, Amherst, Massachusetts.,Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts
| | - John Shin
- Wiess School of Natural Sciences, Rice University, Houston, Texas
| | - Song-Young Park
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, Nebraska
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18
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Honkonen M, Vääräniemi K, Saijonmaa O, Nyman A, Tikkakoski AJ, Koskela J, Lehtimäki T, Kähönen M, Mustonen J, Fyhrquist F, Pörsti I. Leukocyte telomere length is inversely associated with arterial wave reflection in 566 normotensive and never-treated hypertensive subjects. Aging (Albany NY) 2020; 12:12376-12392. [PMID: 32575070 PMCID: PMC7343461 DOI: 10.18632/aging.103459] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/27/2020] [Indexed: 04/19/2023]
Abstract
Telomeres are short segments in chromosome ends, the length of which is reduced during cell lifecycles. We examined the association of mean leukocyte telomere length (LTL) and short telomere proportion (STP) with hemodynamic variables in normotensive and never-treated hypertensive volunteers (n=566, 19-72 years). STP and mean LTL were determined using Southern blotting, and supine hemodynamics recorded using continuous tonometric pulse wave analysis and whole-body impedance cardiography. The analyses were adjusted for age, body mass index (BMI), alcohol use, smoking, plasma chemistry, and estimated glomerular filtration rate (eGFR). In univariate analyses, mean LTL and STP both correlated with age, BMI, eGFR, aortic blood pressure, augmentation index, and pulse wave velocity (p<0.05 for all). Mean LTL also correlated with systemic vascular resistance (p<0.05). In linear regression analyses of all hemodynamic variables, mean LTL was only an independent explanatory factor for augmentation index (Beta -0.006, p=0.032), while STP was not an explanatory factor for any of the hemodynamic variables, in contrast to age, BMI and several cardiovascular risk factors. To conclude, augmentation index was predominantly related with chronological aging, but also with mean LTL, suggesting that this variable of central wave reflection is a modest marker of vascular biological aging.
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Affiliation(s)
- Milja Honkonen
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
| | - Kati Vääräniemi
- Department of Internal Medicine, Central Hospital of Central Finland, Jyväskylä, Finland
| | - Outi Saijonmaa
- Minerva Institute for Medical Research, Biomedicum U2 Helsinki, Helsinki, Finland
| | - Anna Nyman
- Minerva Institute for Medical Research, Biomedicum U2 Helsinki, Helsinki, Finland
| | - Antti J. Tikkakoski
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jenni Koskela
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Terho Lehtimäki
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories Ltd, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Frej Fyhrquist
- Minerva Institute for Medical Research, Biomedicum U2 Helsinki, Helsinki, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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19
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Haarala A, Kähönen E, Koivistoinen T, Pälve K, Hulkkonen J, Tikkakoski A, Sipilä K, Raitakari OT, Lehtimäki T, Kähönen M, Aatola H, Hutri-Kähönen N. Pulse wave velocity is related to exercise blood pressure response in young adults. The Cardiovascular Risk in Young Finns Study. Blood Press 2020; 29:256-263. [DOI: 10.1080/08037051.2020.1750944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Atte Haarala
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Emilia Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Teemu Koivistoinen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
- Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland
| | - Kristiina Pälve
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
| | - Janne Hulkkonen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
- Fimlab Laboratories, Tampere, Finland
| | - Antti Tikkakoski
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Olli T. Raitakari
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
| | - Terho Lehtimäki
- Fimlab Laboratories, Tampere, Finland
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
- Finnish Cardiovascular Research Center-Tampere, Tampere, Finland
| | - Mika Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
- Finnish Cardiovascular Research Center-Tampere, Tampere, Finland
| | - Heikki Aatola
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Nina Hutri-Kähönen
- Department of Pediatrics, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
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20
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Changes in hemodynamics associated with metabolic syndrome are more pronounced in women than in men. Sci Rep 2019; 9:18377. [PMID: 31804574 PMCID: PMC6895092 DOI: 10.1038/s41598-019-54926-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 11/18/2019] [Indexed: 01/09/2023] Open
Abstract
The increase in cardiovascular risk associated with metabolic syndrome (MS) seems higher in women than in men. We examined hemodynamics during head-up tilt in 252 men and 250 women without atherosclerosis, diabetes, or antihypertensive medication, mean age 48 years, using whole-body impedance cardiography and radial pulse wave analysis. MS was defined according to Alberti et al. 2009. Men and women with MS presented with corresponding elevations of systolic and diastolic blood pressure (10-14%, p ≤ 0.001) versus controls. Supine pulse wave velocity (16-17%, p < 0.001) and systemic vascular resistance (7-9%, p ≤ 0.026), and upright cardiac output (6-11%, p ≤ 0.008) were higher in both MS groups than controls. Elevation of supine aortic characteristic impedance was higher in women than in men with MS (16% vs. 8%, p = 0.026), and in contrast to men, no upright impedance reduction was observed in women. When upright, women but not men with MS showed faster return of reflected pressure wave (p = 0.036), and smaller decrease in left cardiac work (p = 0.035) versus controls. The faster upright return of reflected pressure, lower upright decrease in left cardiac work, and higher elevation of aortic characteristic impedance may contribute to the greater increase in MS-related cardiovascular risk in women than in men.
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21
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Oinonen L, Koskela J, Eräranta A, Tikkakoski A, Kähönen M, Niemelä O, Mustonen J, Pörsti I. Plasma total calcium concentration is associated with blood pressure and systemic vascular resistance in normotensive and never-treated hypertensive subjects. Blood Press 2019; 29:137-148. [PMID: 31790289 DOI: 10.1080/08037051.2019.1696180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Purpose: The underlying causes of primary hypertension are not fully understood. Evidence on the relation of plasma calcium concentration with blood pressure (BP) is inconsistent and relies largely on studies utilizing office BP measurements in populations using cardiovascular drugs. In many studies adjustment for confounders was not optimal. In this cross-sectional study we examined the association of plasma total calcium concentration with the haemodynamic determinants of blood pressure.Subjects and methods: Supine haemodynamics were recorded using pulse wave analysis, whole-body impedance cardiography, and heart rate variability analysis in 618 normotensive or never-treated hypertensive subjects (aged 19-72 years) without diabetes, cardiovascular or renal disease, or cardiovascular medications. Linear regression analysis was used to investigate factors associated with haemodynamic variables.Results: Mean age was 45.0 years, body mass index 26.8 kg/m2, seated office BP 141/89 mmHg, and 307 subjects (49.7%) were male. Mean values of routine blood and plasma chemistry analyses were within the reference limits of the tests except for low-density lipoprotein cholesterol (3.05 mmol/l). In the laboratory, mean supine radial BP was 131/75 mmHg, and both systolic and diastolic BP correlated directly with plasma total calcium concentration (r = 0.25 and r = 0.22, respectively, p < 0.001 for both). In regression analysis plasma total calcium concentration was an independent explanatory variable for radial and aortic systolic and diastolic BP, and systemic vascular resistance, but not for cardiac output, pulse wave velocity, or any of the heart rate variability parameters.Conclusion: Plasma total calcium concentration was directly associated with systolic and diastolic BP and systemic vascular resistance in normotensive or never-treated hypertensive subjects without comorbidities and cardiovascular medications. Higher plasma calcium concentration potentially plays a role in primary hypertension via an effect on vascular resistance.
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Affiliation(s)
- Lasse Oinonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jenni Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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22
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Hautaniemi EJ, Tikkakoski AJ, Eräranta A, Kähönen M, Hämäläinen E, Turpeinen U, Huhtala H, Mustonen J, Pörsti IH. Liquorice ingestion attenuates vasodilatation via exogenous nitric oxide donor but not via β2-adrenoceptor stimulation. PLoS One 2019; 14:e0223654. [PMID: 31626649 PMCID: PMC6799927 DOI: 10.1371/journal.pone.0223654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 09/22/2019] [Indexed: 11/19/2022] Open
Abstract
We examined the effect of liquorice ingestion on haemodynamic responses to exogenous nitric oxide donor (nitroglycerin) and β2-adrenoceptor agonist (salbutamol), and 11β-hydroxysteroid dehydrogenase activity, in 21 volunteers and 21 reference subjects. Haemodynamic data was captured before and after sublingual nitroglycerin (0.25 mg) and inhaled salbutamol (400 μg) during orthostatic challenge utilising radial pulse wave analysis and whole-body impedance cardiography. The recordings were performed at baseline and following two weeks of liquorice intake (290-370 mg/d glycyrrhizin). Urinary cortisone and cortisol metabolites were examined. Liquorice intake elevated aortic systolic and diastolic blood pressure and systemic vascular resistance when compared with the reference group. Following research drug administration the liquorice-induced increase in systemic vascular resistance was observed in the presence of nitroglycerin (p<0.05) but no longer in the presence of salbutamol. Liquorice ingestion decreased cardiac chronotropic response to upright posture (p = 0.032) in unadjusted analysis, but when adjusted for age and sex the difference in the upright change in heart rate was no longer significant. The urinary cortisone to cortisol metabolite ratio decreased from 0.70 to 0.31 (p<0.001) after liquorice intake indicating significant inhibition of the 11β-hydroxysteroid dehydrogenase type 2. In the reference group the haemodynamic variables remained virtually unchanged. These results suggest that liquorice exposure impaired vasodilatation in vivo that was induced by exogenous nitric oxide donor but not that induced by β2-adrenoceptor stimulation. Trial registration: EU Clinical Trials Register 2006-002065-39 ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Elina J. Hautaniemi
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Antti J. Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Esa Hämäläinen
- HUSLAB, Helsinki University Hospital, Helsinki, Finland
- Department of Clinical Chemistry, Biomedicum, Helsinki University, Helsinki, Finland
| | | | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H. Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- * E-mail:
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23
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Myocardial preload alters central pressure augmentation through changes in the forward wave. J Hypertens 2019; 36:544-551. [PMID: 29016531 DOI: 10.1097/hjh.0000000000001583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Augmentation index (AIx) is often used to quantify the contribution of wave reflection to central pulse pressure. Recent studies have challenged this view by showing how contractility-induced changes in the forward pressure wave can markedly impact AIx. We hypothesized that changes in preload will also affect AIx through changes in the forward wave and studied this in two experiments. METHODS Noninvasively obtained aortic pressure was used to study central haemodynamics and wave morphology. In the first experiment, we examined the effects of head-up tilt with and without unilateral thigh cuff in 12 young healthy volunteers (mean age 26 years, 50% men). In the second experiment, we examined the effects of active standing in 31 middle-aged patients (mean age 57 years, 65% men) before and after phlebotomy. RESULTS Head-up tilt or active standing significantly decreased AIx [-17.7 ± 10.4 percentage point (pp) in the young population, -4.7 ± 12.3 pp in the middle-aged population, both P < 0.05]. The fall in AIx was associated with increases in HR, diastolic pressure and systemic vascular resistance and a decrease in stroke volume (all P < 0.05). Inflation of a unilateral thigh cuff reduced the decrease in AIx by 10.7 pp, whereas 500 ml of blood loss augmented the fall in AIx by 5.9 pp (both P < 0.05). The changes in AIx were related to a preload-induced change in forward pressure wave shape (earlier peaking and steeper downstroke). CONCLUSION Next to inotropic and chronotropic effects, preload emerges as another myocardial factor that obscures the relation between wave reflection and AIx.
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24
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Adverse influence of bisoprolol on central blood pressure in the upright position: a double-blind placebo-controlled cross-over study. J Hum Hypertens 2019; 34:301-310. [PMID: 30886326 PMCID: PMC7165126 DOI: 10.1038/s41371-019-0188-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/22/2019] [Accepted: 02/18/2019] [Indexed: 02/01/2023]
Abstract
Treatment with beta-blockers is characterized by inferior reduction of central versus peripheral blood pressure. We examined changes in blood pressure, cardiac function, and vascular resistance after 3 weeks of bisoprolol treatment (5 mg/day) during passive head-up tilt in 16 never-treated Caucasian males with grade I–II primary hypertension. A double-blind, randomized, placebo-controlled cross-over design was applied, and hemodynamics were recorded using continuous tonometric pulse wave analysis and whole-body impedance cardiography. Bisoprolol decreased blood pressure in the aorta (~8/10 mmHg, p ≤ 0.032) and radial artery (~10/9 mmHg, p ≤ 0.037), but upright aortic systolic blood pressure was not significantly reduced (p = 0.085). Bisoprolol reduced heart rate and left cardiac work, and increased subendocardial viability index in supine and upright positions (p ≤ 0.044 for all). Bisoprolol increased stroke volume in the supine (~11 ml, p = 0.02) but not in the upright position, while only upright (~1 l/min, p = 0.007) but not supine cardiac output was reduced. Upright elevation in systemic vascular resistance was increased 2.7-fold (p = 0.002), while upright pulse pressure amplification was decreased by ~20% (p = 0.002) after bisoprolol. Aortic augmentation index, augmentation pressure, and pulse pressure were not changed in the supine position but were increased in the upright position (from 9% to 17%, 3–6 mmHg, and 30–34 mmHg, respectively, p ≤ 0.016 for all). In conclusion, although bisoprolol treatment reduced peripheral blood pressure, central systolic blood pressure in the upright position was not decreased. Importantly, the harmful influences of bisoprolol on central pulse pressure and pressure wave reflection were manifested in the upright position.
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25
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Choudhary MK, Eräranta A, Koskela J, Tikkakoski AJ, Nevalainen PI, Kähönen M, Mustonen J, Pörsti I. Atherogenic index of plasma is related to arterial stiffness but not to blood pressure in normotensive and never-treated hypertensive subjects. Blood Press 2019; 28:157-167. [PMID: 30821503 DOI: 10.1080/08037051.2019.1583060] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Atherogenic index of plasma (AIP), defined as the logarithm of triglycerides to high-density lipoprotein cholesterol (HDL-C) ratio, is a strong predictor of future cardiovascular disease. Our aim was to examine the association of AIP with haemodynamic variables in normotensive and never-treated hypertensive subjects in a cross-sectional study. METHODS Supine haemodynamics in 615 subjects without antihypertensive and lipid-lowering medications were examined using whole-body impedance cardiography and radial pulse wave analysis. Linear regression analysis was applied to investigate the association of AIP with haemodynamic variables and age, sex, body mass index (BMI), smoking status, alcohol consumption, plasma C-reactive protein, electrolytes, uric acid, low density lipoprotein cholesterol (LDL-C), estimated glomerular filtration rate, and quantitative insulin sensitivity check index. RESULTS The demographics and laboratory values of the study population were (mean ± 95% confidence interval): age 44.9 ± 1.0 years, BMI 26.8 ± 0.4 kg/m2, office blood pressure 140.6 ± 1.6/89.4 ± 1.0 mmHg, total cholesterol 5.2 ± 0.08, LDL-C 3.1 ± 0.08, triglycerides 1.2 ± 0.08, HDL-C 1.6 ± 0.04 mmol/l, and AIP -0.15 ± 0.02. Age (standardized coefficient Beta 0.508, p < .001) and aortic systolic blood pressure (Beta 0.239, p < .001) presented with the strongest associations with pulse wave velocity. However, AIP was also associated with pulse wave velocity (Beta 0.145, p < .001). AIP was not related with aortic or radial blood pressure, cardiac output, systemic vascular resistance, or augmentation index. CONCLUSIONS AIP is directly and independently associated with arterial stiffness, a variable strongly related to cardiovascular risk. This supports more widespread use of AIP in standard clinical cardiovascular disease risk evaluation.
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Affiliation(s)
- Manoj Kumar Choudhary
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland
| | - Arttu Eräranta
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland
| | - Jenni Koskela
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Antti J Tikkakoski
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,c Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Pasi I Nevalainen
- b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Mika Kähönen
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,c Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Jukka Mustonen
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Ilkka Pörsti
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
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26
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Credeur DP, Miller SM, Jones R, Stoner L, Dolbow DR, Fryer SM, Stone K, McCoy SM. Impact of Prolonged Sitting on Peripheral and Central Vascular Health. Am J Cardiol 2019; 123:260-266. [PMID: 30409414 DOI: 10.1016/j.amjcard.2018.10.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/08/2018] [Accepted: 10/10/2018] [Indexed: 02/02/2023]
Abstract
Prolonged, uninterrupted sitting negatively impacts markers of peripheral vascular health, particularly, vasodilatory function of leg arteries. Whether sitting can similarly impact measures of central vascular health, as well as overall leg vasoreactivity (i.e., vasodilatory and vasoconstrictor function) remains unknown. To address this, measurements were made in relatively healthy participants (i.e., free of overt disease; n = 20, age = 26 ± 7; body mass index = 30 ± 7 kg/m2; 7 female) pre, during and post 3 hours of uninterrupted sitting. Measures of central vascular health included arterial wave reflection (augmentation index and Reflection Magnitude-RM%) and aortic vascular stiffness (aortic pulse wave velocity). Local vasoreactivity of the distal, posterior tibial artery was measured using flow-mediated dilation-FMD, coupled with low-flow mediated constriction, and microvascular function was assessed through the total hyperemic blood velocity (area-under-curve) response during FMD. After sitting, there was a significant increase in aortic pulse wave velocity (pre sit = 5.7 ± 0.3 vs post sit = 6.1 ± 0.3 m/s; p = 0.009, d = 0.36), whereas, augmentation index decreased (pre sit = 13 ± 3 vs post sit = 3 ± 1%; p < 0.001, d = 0.71). Albeit a moderate effect for decrease, RM% was not significantly altered during sitting (p = 0.13, d = 0.3). Vasodilatory (i.e., FMD pre sit = 0.5 ± 0.04 vs post sit = 0.3 ± 0.04 mm; p = 0.014, d = 0.29) and microvascular function (i.e., Microvascular area-under-curve: pre sit = 2,196 ± 333 vs 1,157±172 AU; p = 0.003, d = 0.31) decreased, but vasoconstrictor function (low-flow mediated constriction; p = 0.85, d = 0.005) was unaffected by sitting. In conclusion, these data demonstrate that a prolonged bout of uninterrupted sitting negatively impacts markers of peripheral and central vascular health in relatively healthy adults.
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Affiliation(s)
- Daniel P Credeur
- School of Kinesiology and Nutrition, University of Southern Mississippi, Hattiesburg, Mississippi.
| | - Sabina M Miller
- School of Kinesiology and Nutrition, University of Southern Mississippi, Hattiesburg, Mississippi
| | - Raymond Jones
- School of Kinesiology and Nutrition, University of Southern Mississippi, Hattiesburg, Mississippi
| | - Lee Stoner
- The Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - David R Dolbow
- The Department of Physical Therapy, William Carey University, Hattiesburg, Mississippi
| | - Simon M Fryer
- School of Sport and Exercise, University of Gloucestershire, Gloucester, United Kingdom
| | - Keeron Stone
- School of Sport and Exercise, University of Gloucestershire, Gloucester, United Kingdom
| | - Stephanie M McCoy
- School of Kinesiology and Nutrition, University of Southern Mississippi, Hattiesburg, Mississippi
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27
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Choudhary MK, Eräranta A, Tikkakoski AJ, Koskela J, Hautaniemi EJ, Kähönen M, Mustonen J, Pörsti I. LDL cholesterol is associated with systemic vascular resistance and wave reflection in subjects naive to cardiovascular drugs. Blood Press 2018; 28:4-14. [PMID: 30369274 DOI: 10.1080/08037051.2018.1521263] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIM Low density lipoprotein cholesterol (LDL-C) is a primary risk factor for atherosclerosis, but it is also associated with elevated blood pressure (BP) and future development of hypertension. We examined the relationship between LDL-C and haemodynamic variables in normotensive and never-treated hypertensive subjects. METHODS We recruited 615 volunteers (19-72 years) without lipid-lowering and BP-lowering medication. Supine haemodynamics were recorded using continuous radial pulse wave analysis, whole-body impedance cardiography, and single channel electrocardiogram. The haemodynamic relations of LDL-C were examined using linear regression analyses with age, sex, body mass index (BMI) (or height and weight as appropriate), smoking status, alcohol use, and plasma C-reactive protein, sodium, uric acid, high density lipoprotein cholesterol (HDL-C), triglycerides, estimated glomerular filtration rate, and quantitative insulin sensitivity check index as the other included variables. RESULTS The mean (SD) characteristics of the subjects were: age 45 (12) years, BMI 27 (4) kg/m2, office BP 141/89 (21/13) mmHg, creatinine 74 (14) µmol/l, total cholesterol 5.2 (1.0), LDL-C 3.1 (0.6), triglycerides 1.2 (0.8), and HDL-C 1.6 (0.4) mmol/l. LDL-C was an independent explanatory factor for aortic systolic and diastolic BP, augmentation index, pulse wave velocity (PWV), and systemic vascular resistance index (p < 0.05 for all). When central BP was included in the model for PWV, LDL-C was no longer an explanatory factor for PWV. CONCLUSIONS LDL-C is independently associated with BP via systemic vascular resistance and wave reflection. These results suggest that LDL-C may play a role in the pathogenesis of primary hypertension.
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Affiliation(s)
| | - Arttu Eräranta
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland
| | - Antti J Tikkakoski
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,b Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Jenni Koskela
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland
| | - Elina J Hautaniemi
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland
| | - Mika Kähönen
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,b Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Jukka Mustonen
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,c Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Ilkka Pörsti
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,c Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
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28
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Effect of present versus previous smoking on non-invasive haemodynamics. Sci Rep 2018; 8:13643. [PMID: 30206258 PMCID: PMC6134124 DOI: 10.1038/s41598-018-31904-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 08/29/2018] [Indexed: 12/19/2022] Open
Abstract
We examined cardiovascular function in 637 volunteers (19-72 years) without antihypertensive medication in never smokers (n = 365), present smokers (n = 81) and previous smokers (n = 191, median abstinence 10 years). Haemodynamics during passive head-up tilt were recorded using whole-body impedance cardiography and radial pulse wave analysis. Results were adjusted for age, sex, body mass index, LDL cholesterol and alcohol use. Systolic and diastolic blood pressure, heart rate, and pulse wave velocity were not different between the groups. Supine aortic reflection times did not differ, while upright values were shorter in present versus previous smokers (p = 0.04). Heart rate adjusted augmentation index was increased in the supine position in present smokers versus controls (p = 0.045), and in present (p < 0.001) and previous (p = 0.031) smokers versus controls in the upright position. Supine and upright cardiac output was higher (p ≤ 0.016) and systemic vascular resistance lower (p ≤ 0.001) in present versus previous smokers. In spite of the long abstinence, in the upright position previous smokers had lower cardiac output (p = 0.032) and higher systemic vascular resistance (p = 0.014) than never smokers. In the absence of differences in blood pressure and arterial stiffness, present smokers presented with hyperdynamic circulation and enhanced wave reflection compared with previous smokers.
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29
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Koivistoinen T, Lyytikäinen LP, Aatola H, Luukkaala T, Juonala M, Viikari J, Lehtimäki T, Raitakari OT, Kähönen M, Hutri-Kähönen N. Pulse Wave Velocity Predicts the Progression of Blood Pressure and Development of Hypertension in Young Adults. Hypertension 2018; 71:451-456. [DOI: 10.1161/hypertensionaha.117.10368] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 10/04/2017] [Accepted: 12/14/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Teemu Koivistoinen
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Leo-Pekka Lyytikäinen
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Heikki Aatola
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Tiina Luukkaala
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Markus Juonala
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Jorma Viikari
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Terho Lehtimäki
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Olli T. Raitakari
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Mika Kähönen
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
| | - Nina Hutri-Kähönen
- From the Departments of Clinical Physiology (T.K., H.A., M.K.), Clinical Chemistry, Fimlab Laboratories (L.-P.L., T. Lehtimäki), and Pediatrics (N.H-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Research and Innovation Center, Tampere University Hospital, Finland (T. Luukkaala); Health Sciences, Faculty of Social Sciences, University of Tampere,
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30
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Tikkakoski AJ, Kangas P, Suojanen L, Tahvanainen AM, Eräranta A, Kähönen MAP, Sipilä K, Mustonen JT, Pörsti IH. Salbutamol-induced Decrease in Augmentation Index is Related to the Parallel Increase in Heart Rate. Basic Clin Pharmacol Toxicol 2018; 123:161-173. [PMID: 29476697 DOI: 10.1111/bcpt.12988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/11/2018] [Indexed: 11/30/2022]
Abstract
The change in augmentation index following salbutamol inhalation has been applied to evaluate endothelial function. We examined the contribution of salbutamol-induced increase in heart rate to the observed decrease in augmentation index. Haemodynamics were recorded using whole-body impedance cardiography and continuous pulse wave analysis from tonometric radial blood pressure. All subjects (n = 335, mean age 46, body mass index 26, 48% men) were without medications with cardiovascular influences. The effects of salbutamol inhalation (0.4 mg) versus the endothelium-independent agent nitroglycerin resoriblet (0.25 mg) were examined during passive head-up tilt, as the haemodynamic influences of these compounds depend on body position. Salbutamol decreased augmentation index by ~3-4% units in supine and upright positions. Although salbutamol moderately increased cardiac index (+4.5%) and decreased systemic vascular resistance (-8.5%), the significant haemodynamic explanatory factors for decreased augmentation index in multivariate analysis were increased supine heart rate, and increased upright heart rate and decreased ejection duration (p < 0.001 for all, r2 = 0.36-0.37). Sublingual nitroglycerin decreased supine and upright augmentation index by ~15% units and ~23% units, respectively. The haemodynamic explanatory factors for these changes in multivariate analysis were increased heart rate, reduced ejection duration and reduced systemic vascular resistance (p ≤ 0.021 for all, r2 = 0.22-0.34). In conclusion, the lowering influence of salbutamol on augmentation index may be largely explained by increased heart rate, suggesting that this effect may not predominantly reflect endothelial function.
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Affiliation(s)
- Antti J Tikkakoski
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Pauliina Kangas
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Lauri Suojanen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Anna M Tahvanainen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Mika A P Kähönen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka T Mustonen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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31
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Reliability of pulse waveform separation analysis responses to an orthostatic challenge. Hypertens Res 2018; 41:176-182. [PMID: 29335614 DOI: 10.1038/s41440-017-0005-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/17/2017] [Accepted: 08/04/2017] [Indexed: 11/08/2022]
Abstract
Cardiovascular autonomic nervous system function can be assessed using an orthostatic challenge to induce arterial wave reflection. While arterial reflection is typically estimated using a central augmentation index, a superior estimation can be obtained using pulse wave separation analysis to estimate the aortic backward pressure wave (Pb). However, to be of value in a clinical or research setting, an assessment tool must be precise (reliable). Therefore, this study sought to determine the measurement precision of Pb responses to a modified tilt-table test. Twenty healthy adults (26.4 year (SD 5.2), 24.7 kg/m2 (SD 3.8), 55% female) were tested in a fasted state on three different mornings separated by a maximum of seven days. Pressure waveforms were recorded on the left arm, and aortic waveforms were generated using a generalized transfer function. Subsequently, a physiologic flow waveform was assumed to separate the aortic pressure wave into its forward and timing-independent backward (Pb) components. The criterion intra-class correlation coefficient of ≥0.75 was exceeded at baseline (0.79), following a 5-min tilt (0.75), and following a 5-min recovery from tilt (0.75). The standard error of measurement was 7%. These findings indicate that in a healthy cohort, the Pb response to an orthostatic challenge can be assessed with acceptable precision. The next step is to determine the sensitivity (validity) of this technique in identifying cardiovascular autonomic dysfunction in patient groups.
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32
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Hautaniemi EJ, Tahvanainen AM, Koskela JK, Tikkakoski AJ, Kähönen M, Uitto M, Sipilä K, Niemelä O, Mustonen J, Pörsti IH. Voluntary liquorice ingestion increases blood pressure via increased volume load, elevated peripheral arterial resistance, and decreased aortic compliance. Sci Rep 2017; 7:10947. [PMID: 28887501 PMCID: PMC5591274 DOI: 10.1038/s41598-017-11468-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/24/2017] [Indexed: 12/21/2022] Open
Abstract
We investigated the haemodynamic effects of two-week liquorice exposure (glycyrrhizin dose 290-370 mg/day) in 22 healthy volunteers during orthostatic challenge. Haemodynamics were recorded during passive 10-minute head-up tilt using radial pulse wave analysis, whole-body impedance cardiography, and spectral analysis of heart rate variability. Thirty age-matched healthy subjects served as controls. Liquorice ingestion elevated radial systolic (p < 0.001) and diastolic (p = 0.018) blood pressure and systemic vascular resistance (p = 0.037). During orthostatic challenge, heart rate increased less after the liquorice versus control diet (p = 0.003) and low frequency power of heart rate variability decreased within the liquorice group (p = 0.034). Liquorice intake increased central pulse pressure (p < 0.001) and augmentation index (p = 0.002) supine and upright, but in the upright position the elevation of augmentation index was accentuated (p = 0.007). Liquorice diet also increased extracellular fluid volume (p = 0.024) and aortic to popliteal pulse wave velocity (p = 0.027), and aortic characteristic impedance in the upright position (p = 0.002). To conclude, in addition to increased extracellular fluid volume and large arterial stiffness, two weeks of liquorice ingestion elevated systemic vascular resistance and augmentation index. Measurements performed at rest may underestimate the haemodynamic effects of liquorice ingestion, as enhanced central wave reflection and reduced chronotropic response were especially observed in the upright position.
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Affiliation(s)
- Elina J Hautaniemi
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland. .,Nutrition Unit, Tampere University Hospital, Tampere, 33521, Finland.
| | - Anna M Tahvanainen
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
| | - Jenni K Koskela
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
| | - Antti J Tikkakoski
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, 33521, Finland
| | - Mika Kähönen
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, 33521, Finland
| | - Marko Uitto
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology, Tampere University Hospital, Tampere, 33521, Finland
| | - Onni Niemelä
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, 60220, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
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33
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Aatola H, Koivistoinen T, Tuominen H, Juonala M, Lehtimäki T, Viikari JSA, Raitakari OT, Kähönen M, Hutri-Kähönen N. Influence of Child and Adult Elevated Blood Pressure on Adult Arterial Stiffness: The Cardiovascular Risk in Young Finns Study. Hypertension 2017; 70:531-536. [PMID: 28674036 DOI: 10.1161/hypertensionaha.117.09444] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/05/2017] [Accepted: 05/01/2017] [Indexed: 01/26/2023]
Abstract
Elevated blood pressure (BP) in childhood has been associated with increased adult arterial stiffness, the independent predictor of cardiovascular and all-cause mortality. The favorable BP change from childhood to adulthood and the risk of high adult arterial stiffness has not been reported. We examined the effect of child and adult BP on pulse wave velocity (PWV) assessed in adulthood among 1540 white adults followed-up for 27 years since baseline (1980, aged 6-18 years). Childhood elevated BP was defined according to the tables from the National High Blood Pressure Education Program. In adulthood, BP was classified as elevated if systolic BP ≥120 mm Hg, diastolic BP ≥80 mm Hg, or self-reported use of antihypertensive medications. PWV was measured in 2007 by whole-body impedance cardiography, and high PWV was defined as values at or above the age-, sex-, and heart rate-specific 80th percentile. Individuals with persistently elevated BP and individuals with normal child but elevated adult BP had increased risk of high adult PWV (relative risk [95% confidence interval], 3.18 [2.22-4.55] and 2.64 [1.79-3.88], respectively) in comparison with individuals with normal (both child and adult) BP. In contrast, individuals with elevated BP in childhood but not in adulthood did not have significantly increased risk of high PWV (relative risk [95% confidence interval], 1.26[0.80-1.99]). The results were consistent when different definitions for child and adult elevated BP were applied. These findings highlight the importance of BP control in the primary prevention of cardiovascular diseases.
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Affiliation(s)
- Heikki Aatola
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland.
| | - Teemu Koivistoinen
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
| | - Heikki Tuominen
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
| | - Markus Juonala
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
| | - Terho Lehtimäki
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
| | - Jorma S A Viikari
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
| | - Olli T Raitakari
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
| | - Mika Kähönen
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
| | - Nina Hutri-Kähönen
- From the Departments of Clinical Physiology (H.A., T.K., H.T., M.K.), Clinical Chemistry, Fimlab Laboratories (T.L.), and Pediatrics (N.H.-K.), Faculty of Medicine and Life Sciences, University of Tampere and Tampere University Hospital, Finland; Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland (T.K.); Departments of Medicine (M.J., J.S.A.V.) and Clinical Physiology and Nuclear Medicine (O.T.R.) and Research Centre of Applied and Preventive Cardiovascular Medicine (M.J., O.T.R.), University of Turku, Finland; and Division of Medicine (J.S.A.V.), Turku University Hospital, Finland
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Suojanen L, Haring A, Tikkakoski A, Koskela JK, Tahvanainen AM, Huhtala H, Kähönen M, Sipilä K, Eräranta A, Mustonen JT, Kivistö K, Pörsti IH. Haemodynamic Influences of Bisoprolol in Hypertensive Middle-Aged Men: A Double-Blind, Randomized, Placebo-Controlled Cross-Over Study. Basic Clin Pharmacol Toxicol 2017; 121:130-137. [DOI: 10.1111/bcpt.12771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 02/21/2017] [Indexed: 11/27/2022]
Affiliation(s)
- Lauri Suojanen
- School of Medicine; University of Tampere; Tampere Finland
| | - Antti Haring
- School of Medicine; University of Tampere; Tampere Finland
| | | | | | | | - Heini Huhtala
- School of Health Sciences; University of Tampere; Tampere Finland
| | - Mika Kähönen
- School of Medicine; University of Tampere; Tampere Finland
- Department of Clinical Physiology; Tampere University Hospital; Tampere Finland
| | - Kalle Sipilä
- Department of Clinical Physiology; Tampere University Hospital; Tampere Finland
| | - Arttu Eräranta
- School of Medicine; University of Tampere; Tampere Finland
| | - Jukka T. Mustonen
- School of Medicine; University of Tampere; Tampere Finland
- Department of Internal Medicine; Tampere University Hospital; Tampere Finland
| | - Kari Kivistö
- School of Medicine; University of Tampere; Tampere Finland
| | - Ilkka H. Pörsti
- School of Medicine; University of Tampere; Tampere Finland
- Department of Internal Medicine; Tampere University Hospital; Tampere Finland
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Hughes WE, Casey DP. Aortic Wave Reflection During Orthostatic Challenges: Influence of Body Position and Venous Pooling. Am J Hypertens 2017; 30:166-172. [PMID: 28077421 DOI: 10.1093/ajh/hpw138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/13/2016] [Accepted: 10/17/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Aortic wave reflection (augmentation index; AIx) decreases during orthostatic challenges despite increased peripheral resistance, which is thought to be due to venous pooling. The purpose of this study was to examine if the decrease in AIx during an orthostatic challenge is due to venous pooling alone or body position manipulation. METHODS Twenty-three young, healthy adults (11F/12M) participated in 3 separate orthostatic challenges (5 minutes each); 60° head-up tilt (HUT), 60° HUT with bilateral rhythmic blood pressure (BP) cuff inflation on calves (75 mm Hg) to minimize venous pooling, and lower body negative pressure (LBNP; -30 mm Hg) for venous pooling independent of body position. High-fidelity radial artery pressure waveforms using applanation tonometry were recorded at minutes 2:30 and 5:00 during each condition. Aortic BP and wave reflection were analyzed from a synthesized aortic BP waveform. RESULTS Compared to resting (baseline) measurements, AIx did not significantly decrease at minutes 2:30 or 5:00 of HUT conditions (HUT 0 ± 2% vs. -3 ± 3%, 0 ± 2%; HUT w/cuffs 0 ± 2% vs. -4 ± 2%, 0 ± 2%). Conversely, LBNP substantially reduced AIx at minutes 2:30 and 5:00 (1 ± 2% vs. -15 ± 2% and -12 ± 2%; P < 0.01). When standardized to heart rate (AIx@75), AIx@75 increased relative to baseline during HUT conditions (P < 0.05). CONCLUSIONS In contrast to previous studies, AIx did not decrease during passive HUT, yet decreased substantially during LBNP. Despite being well matched for peripheral hemodynamics, it appears that LBNP elicits a greater effect on central hemodynamics, relative to passive HUT. Collectively, changes in body position alone do not explain differences in AIx during orthostatic conditions.
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Affiliation(s)
- William E Hughes
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
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36
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Kangas P, Tahvanainen A, Tikkakoski A, Koskela J, Uitto M, Viik J, Kähönen M, Kööbi T, Mustonen J, Pörsti I. Increased Cardiac Workload in the Upright Posture in Men: Noninvasive Hemodynamics in Men Versus Women. J Am Heart Assoc 2016; 5:JAHA.115.002883. [PMID: 27329447 PMCID: PMC4937251 DOI: 10.1161/jaha.115.002883] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background Men and women differ in the risk of cardiovascular disease, but the underlying mechanisms are not completely understood. We examined possible sex‐related differences in supine and upright cardiovascular regulation. Methods and Results Hemodynamics were recorded from 167 men and 167 women of matching age (≈45 years) and body mass index (≈26.5) during passive head‐up tilt. None had diabetes mellitus or cardiovascular disease other than hypertension or used antihypertensive medication. Whole‐body impedance cardiography, tonometric radial blood pressure, and heart rate variability were analyzed. Results were adjusted for height, smoking, alcohol intake, mean arterial pressure, plasma lipids, and glucose. Supine hemodynamic differences were minor: Men had lower heart rate (−4%) and higher stroke index (+7.5%) than women (P<0.05 for both). Upright systemic vascular resistance was lower (−10%), but stroke index (+15%), cardiac index (+16%), and left cardiac work were clearly higher (+20%) in men than in women (P<0.001 for all). Corresponding results were observed in a subgroup of men and postmenopausal women (n=76, aged >55 years). Heart rate variability analyses showed higher low:high frequency ratios in supine (P<0.001) and upright (P=0.003) positions in men. Conclusions The foremost difference in cardiovascular regulation between sexes was higher upright hemodynamic workload for the heart in men, a finding not explained by known cardiovascular risk factors or hormonal differences before menopause. Heart rate variability analyses indicated higher sympathovagal balance in men regardless of body position. The deviations in upright hemodynamics could play a role in the differences in cardiovascular risk between men and women. Clinical Trial Registration URL: http://www.clinicaltrials.gov. Unique identifier: NCT01742702.
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Affiliation(s)
| | - Anna Tahvanainen
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- School of Medicine, University of Tampere, Finland Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jenni Koskela
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Marko Uitto
- Department of Electronics and Communication Engineering, Tampere University of Technology, Tampere, Finland
| | - Jari Viik
- Department of Electronics and Communication Engineering, Tampere University of Technology, Tampere, Finland
| | - Mika Kähönen
- School of Medicine, University of Tampere, Finland Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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37
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Wilenius M, Tikkakoski AJ, Tahvanainen AM, Haring A, Koskela J, Huhtala H, Kähönen M, Kööbi T, Mustonen JT, Pörsti IH. Central wave reflection is associated with peripheral arterial resistance in addition to arterial stiffness in subjects without antihypertensive medication. BMC Cardiovasc Disord 2016; 16:131. [PMID: 27266507 PMCID: PMC4897906 DOI: 10.1186/s12872-016-0303-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/30/2016] [Indexed: 12/22/2022] Open
Abstract
Background Augmentation index, a marker of central wave reflection, is influenced by age, sex, height, blood pressure, heart rate, and arterial stiffness. However, the detailed haemodynamic determinants of augmentation index, and their relations, remain uncertain. We examined the association of augmentation index with vascular resistance and other haemodynamic and non-haemodynamic factors. Methods Background information, laboratory values, and haemodynamics of 488 subjects (239 men, 249 women) without antihypertensive medication were obtained. Indices of central wave reflection, systemic vascular resistance, cardiac function, and pulse wave velocity were measured using continuous radial pulse wave analysis and whole-body impedance cardiography. Results In a regression model including only haemodynamic variables, augmentation index in males and female subjects, respectively, was associated with systemic vascular resistance (β = 0.425, β = 0.336), pulse wave velocity (β = 0.409, β = 0.400) (P < 0.001 for all), stroke volume (β = 0.256, β = 0.278) (P = 0.001 for both) and heart rate (β = −0.150, β = −0.156) (P = 0.049 and P = 0.036). When age, height, weight, smoking habits, and laboratory values were included in the regression model, the most significant explanatory variables for augmentation index in males and females, respectively, were age (β = 0.577, β = 0.557) and systemic vascular resistance (β = 0.437, β = 0.295) (P < 0.001 for all). In the final regression model, pulse wave velocity was not a significant explanatory variable for augmentation index, probably due to the high correlation of this variable with age (Spearman’s correlation ≥0.617). Conclusion Augmentation index is strongly associated with systemic vascular resistance in addition to arterial stiffness. Trial registration ClinicalTrials.gov, NCT01742702. Electronic supplementary material The online version of this article (doi:10.1186/s12872-016-0303-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Matias Wilenius
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.
| | - Antti J Tikkakoski
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland
| | - Anna M Tahvanainen
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland
| | - Antti Haring
- School of Medicine, Department of Pharmacological Sciences, University of Tampere, Tampere, Finland
| | - Jenni Koskela
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland
| | - Heini Huhtala
- School of Health Sciences, University of Tampere, Tampere, Finland
| | - Mika Kähönen
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka T Mustonen
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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38
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Boggia J, Luzardo L, Lujambio I, Sottolano M, Robaina S, Thijs L, Olascoaga A, Noboa O, Struijker-Boudier HA, Safar ME, Staessen JA. The Diurnal Profile of Central Hemodynamics in a General Uruguayan Population. Am J Hypertens 2016; 29:737-46. [PMID: 26476084 DOI: 10.1093/ajh/hpv169] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 09/26/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND No previous population study assessed the diurnal profile of central arterial properties. METHODS In 167 participants (mean age, 56.1 years; 63.5% women), randomly recruited in Montevideo, Uruguay, we used the oscillometric Mobil-O-Graph 24-h PWA monitor to measure peripheral and central systolic (SBP), diastolic (DBP), and pulse (PP) pressures and central hemodynamics standardized to a heart rate of 75 bpm, including aortic pulse wave velocity, systolic augmentation (first/second peak × 100), and pressure amplification (peripheral PP/central PP). RESULTS Over 24 hours, day and night, peripheral minus central differences in SBP/DBP and in PP averaged 12.2/-1.1, 14.0/-0.7, and 9.7/0.2mm Hg and 12.6, 14.7, and 9.5mm Hg, respectively (P < 0.001 except for nighttime DBP (P = 0.38)). The central-to-peripheral ratios of SBP, DBP, and PP were 0.89, 1.00, and 0.70 unadjusted, but after accounting for anthropometric characteristics decreased to 0.74, 0.97, and 0.63, respectively, with strong influence of height for SBP and DBP and of sex for PP. From day (10-20h) to nighttime (0-6h), peripheral (-10.4/-10.5 mm Hg) and central (-6.0/-11.3mm Hg) SBP/DBP, pulse wave velocity (-0.7 m/s) and pressure amplification (-0.05) decreased (P < 0.001), whereas central PP (+5.3mm Hg) and systolic augmentation (+2.3%) increased (P < 0.001). CONCLUSIONS The diurnal rhythm of central pressure runs in parallel with that of peripheral pressure, but the nocturnal fall in SBP is smaller centrally than peripherally. pulse wave velocity, systolic augmentation, and pressure amplification loop through the day with high pulse wave velocity and pressure amplification but low systolic augmentation in the evening and opposite trends in the morning.
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Affiliation(s)
- José Boggia
- Unidad de Hipertensión Arterial, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Departamento de Fisiopatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Centro de Nefrología, Universidad de la República, Montevideo, Uruguay;
| | - Leonella Luzardo
- Unidad de Hipertensión Arterial, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Departamento de Fisiopatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Centro de Nefrología, Universidad de la República, Montevideo, Uruguay
| | - Inés Lujambio
- Unidad de Hipertensión Arterial, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Departamento de Fisiopatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Mariana Sottolano
- Unidad de Hipertensión Arterial, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Departamento de Fisiopatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Centro de Nefrología, Universidad de la República, Montevideo, Uruguay
| | - Sebastián Robaina
- Unidad de Hipertensión Arterial, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Departamento de Fisiopatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Lutgarde Thijs
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Alicia Olascoaga
- Departamento de Laboratorio Clínico, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Oscar Noboa
- Unidad de Hipertensión Arterial, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay; Centro de Nefrología, Universidad de la República, Montevideo, Uruguay
| | | | - Michel E Safar
- Faculty of Medicine, Hôtel-Dieu Hospital, Paris-Descartes University, Paris, France
| | - Jan A Staessen
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium; R & D VitaK Group, Maastricht University, Maastricht, The Netherlands
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Tahvanainen AM, Tikkakoski AJ, Koskela JK, Nordhausen K, Viitala JM, Leskinen MH, Kähönen MAP, Kööbi T, Uitto MT, Viik J, Mustonen JT, Pörsti IH. The type of the functional cardiovascular response to upright posture is associated with arterial stiffness: a cross-sectional study in 470 volunteers. BMC Cardiovasc Disord 2016; 16:101. [PMID: 27216309 PMCID: PMC4877753 DOI: 10.1186/s12872-016-0281-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 05/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In a cross-sectional study we examined whether the haemodynamic response to upright posture could be divided into different functional phenotypes, and whether the observed phenotypes were associated with known determinants of cardiovascular risk. METHODS Volunteers (n = 470) without medication with cardiovascular effects were examined using radial pulse wave analysis, whole-body impedance cardiography, and heart rate variability analysis. Based on the passive head-up tilt induced changes in systemic vascular resistance and cardiac output, the principal determinants of blood pressure, a cluster analysis was performed. RESULTS The haemodynamic response could be clustered into 3 categories: upright increase in vascular resistance and decrease in cardiac output were greatest in the first (+45 % and -27 %, respectively), smallest in the second (+2 % and -2 %, respectively), and intermediate (+22 % and -13 %, respectively) in the third group. These groups were named as 'constrictor' (n = 109), 'sustainer' (n = 222), and 'intermediate' (n = 139) phenotypes, respectively. The sustainers were characterized by male predominance, higher body mass index, blood pressure, and also by higher pulse wave velocity, an index of large arterial stiffness, than the other groups (p < 0.01 for all). Heart rate variability analysis showed higher supine and upright low frequency/high frequency (LF/HF) ratio in the sustainers than constrictors, indicating increased sympathovagal balance. Upright LF/HF ratio was also higher in the sustainer than intermediate group. In multivariate analysis, independent explanatory factors for higher pulse wave velocity were the sustainer (p < 0.022) and intermediate phenotypes (p < 0.046), age (p < 0.001), body mass index (p < 0.001), and hypertension (p < 0.001). CONCLUSIONS The response to upright posture could be clustered to 3 functional phenotypes. The sustainer phenotype, with smallest upright decrease in cardiac output and highest sympathovagal balance, was independently associated with increased large arterial stiffness. These results indicate an association of the functional haemodynamic phenotype with an acknowledged marker of cardiovascular risk. TRIAL REGISTRATION ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Anna M Tahvanainen
- School of Medicine, University of Tampere, Tampere, Finland. .,School of Medicine / Internal Medicine, FIN-33014 University of Tampere, Tampere, Finland.
| | | | | | - Klaus Nordhausen
- Department of Mathematics and Statistics, University of Turku, Turku, Finland
| | - Jani M Viitala
- School of Medicine, University of Tampere, Tampere, Finland
| | | | - Mika A P Kähönen
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
| | - Marko T Uitto
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Electronics and Communication Engineering, Tampere University of Technology, BioMediTech, Tampere, Finland
| | - Jari Viik
- Department of Electronics and Communication Engineering, Tampere University of Technology, BioMediTech, Tampere, Finland
| | - Jukka T Mustonen
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
| | - Ilkka H Pörsti
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
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Taivainen SH, Yli-Ollila H, Juonala M, Kähönen M, Raitakari OT, Laitinen TM, Laitinen TP. Interrelationships between indices of longitudinal movement of the common carotid artery wall and the conventional measures of subclinical arteriosclerosis. Clin Physiol Funct Imaging 2015; 37:305-313. [DOI: 10.1111/cpf.12305] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 08/03/2015] [Indexed: 01/19/2023]
Affiliation(s)
- S. Helena Taivainen
- Department of Clinical Physiology and Nuclear Medicine; Kuopio University Hospital; Kuopio Finland
- Department of Clinical Physiology and Nuclear Medicine; University of Eastern Finland; Kuopio Finland
| | - Heikki Yli-Ollila
- Department of Clinical Physiology and Nuclear Medicine; Kuopio University Hospital; Kuopio Finland
- Department of Applied Physics; University of Eastern Finland; Kuopio Finland
| | - Markus Juonala
- Department of Medicine; University of Turku; Turku Finland
- Division of Medicine; Turku University Hospital; Turku Finland
- Murdoch Children's Research Institute; Parkville Vic. Australia
| | - Mika Kähönen
- Department of Clinical Physiology; Tampere University Hospital; Tampere Finland
| | - Olli T. Raitakari
- Research Centre of Applied and Preventive Cardiovascular Medicine; University of Turku; Turku Finland
- Department of Clinical Physiology and Nuclear Medicine; Turku University Hospital; Turku Finland
| | - Tiina M. Laitinen
- Department of Clinical Physiology and Nuclear Medicine; Kuopio University Hospital; Kuopio Finland
| | - Tomi P. Laitinen
- Department of Clinical Physiology and Nuclear Medicine; Kuopio University Hospital; Kuopio Finland
- Department of Clinical Physiology and Nuclear Medicine; University of Eastern Finland; Kuopio Finland
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41
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Effect of fermented milk product containing lactotripeptides and plant sterol esters on haemodynamics in subjects with the metabolic syndrome – a randomised, double-blind, placebo-controlled study. Br J Nutr 2015; 114:376-86. [DOI: 10.1017/s0007114515002032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We investigated the effects of fermented milk product containing isoleucine–proline–proline, valine–proline–proline and plant sterol esters (Pse) on plasma lipids, blood pressure (BP) and its determinants systemic vascular resistance and cardiac output. In a randomised, double-blind, placebo-controlled study, 104 subjects with the metabolic syndrome (MetS) were allocated to three groups in order to receive fermented milk product containing (1) 5 mg/d lactotripeptides (LTP) and 2 g/d plant sterols; (2) 25 mg/d LTP and 2 g/d plant sterols; (3) placebo for 12 weeks. Plasma lipids and home BP were monitored. Haemodynamics were examined in a laboratory using radial pulse wave analysis and whole-body impedance cardiography in the supine position and during orthostatic challenge. There were no differences between the effects of the two treatments and placebo on the measurements of BP at home or on BP, systemic vascular resistance index and cardiac index in the laboratory, neither in the supine nor in the upright position. The changes in plasma LDL-cholesterol concentration were − 0·1 (95 % CI − 0·3, 0·1 and − 0·3, 0·0) mmol/l in the 5 and 25 mg/d LTP groups, respectively, and +0·1 (95 % CI − 0·1, 0·3) mmol/l during placebo (P= 0·024). Both at baseline and at week 12, the increase in systemic vascular resistance during head-up tilt was lower in the 25 mg/d LTP group than in the 5 mg/d LTP group (P< 0·01), showing persistent differences in cardiovascular regulation between these groups. In subjects with the MetS, intake of LTP and Pse in fermented milk product showed a lipid-lowering effect of borderline significance, while no antihypertensive effect was observed at home or in the laboratory.
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42
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Stoner L, Bonner C, Credeur D, Lambrick D, Faulkner J, Wadsworth D, Williams MA. Reliability of oscillometric central hemodynamic responses to an orthostatic challenge. Atherosclerosis 2015; 241:761-5. [PMID: 26142686 DOI: 10.1016/j.atherosclerosis.2015.06.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/29/2015] [Accepted: 06/22/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Monitoring central hemodynamic responses to an orthostatic challenge may provide important insight into autonomic nervous system function. Oscillometric pulse wave analysis devices have recently emerged, presenting clinically viable options for investigating central hemodynamic properties. The purpose of the current study was to determine whether oscillometric pulse wave analysis can be used to reliably (between-day) assess central blood pressure and central pressure augmentation (augmentation index) responses to a 5 min orthostatic challenge (modified tilt-table). METHODS Twenty healthy adults (26.4 y (SD 5.2), 55% F, 24.7 kg/m(2) (SD 3.8)) were tested on 3 different mornings in the fasted state, separated by a maximum of 7 days. Central hemodynamic variables were assessed on the left arm using an oscillometric device. RESULTS Repeated measures analysis of variance indicated a significant main effect of the modified tilt-table for all central hemodynamic variables (P < 0.001). In response to the tilt, central diastolic pressure increased by 4.5 mmHg (CI: 2.6, 6.4), central systolic blood pressure increased by 2.3 (CI: 4.4, 0.16) mmHg, and augmentation index decreased by an absolute - 5.3%, (CI: -2.7, -7.9%). The intra-class correlation coefficient values for central diastolic pressure (0.83-0.86), central systolic blood pressure (0.80-0.87) and AIx (0.79-0.82) were above the 0.75 criterion in both the supine and tilted positions, indicating excellent between-day reliability. CONCLUSION Central hemodynamic responses to an orthostatic challenge can be assessed with acceptable between-day reliability using oscillometric pulse wave analysis.
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Affiliation(s)
- Lee Stoner
- School of Sport and Exercise, Massey University, Wellington, Private Bag 756, Wellington, 6140, New Zealand.
| | - Chantel Bonner
- Department of Epidemiology, Harvard School of Public Health, USA
| | - Daniel Credeur
- School of Human Performance and Recreation, University of Southern Mississippi, USA
| | | | - James Faulkner
- Department of Sport & Exercise, University of Winchester, UK
| | - Daniel Wadsworth
- School of Sport and Exercise, Massey University, Wellington, Private Bag 756, Wellington, 6140, New Zealand
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Turpeinen H, Seppälä I, Lyytikäinen LP, Raitoharju E, Hutri-Kähönen N, Levula M, Oksala N, Waldenberger M, Klopp N, Illig T, Mononen N, Laaksonen R, Raitakari O, Kähönen M, Lehtimäki T, Pesu M. A genome-wide expression quantitative trait loci analysis of proprotein convertase subtilisin/kexin enzymes identifies a novel regulatory gene variant for FURIN expression and blood pressure. Hum Genet 2015; 134:627-36. [PMID: 25813623 DOI: 10.1007/s00439-015-1546-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 03/18/2015] [Indexed: 01/11/2023]
Abstract
Proprotein convertase subtilisin/kexin (PCSK) enzymes cleave and convert their immature substrates into biologically active forms. Polymorphisms in the PCSK genes have been reported to associate with human diseases and phenotypes, including hypercholesterolemia and blood pressure (BP), and targeting PCSKs is considered a promising future form of drug therapy. PCSK processing is readily induced upon upregulation of the enzyme, but the genetic factors contributing to PCSK expression have not been thoroughly characterized. To gain a comprehensive understanding of the genetic regulation of PCSK expression, we performed, for the first time, a genome-wide expression quantitative trait loci (eQTL) analysis using mRNA expression in >1400 human peripheral blood samples from the Cardiovascular Risk in Young Finns Study and ca. ten million single-nucleotide polymorphisms (SNPs). The expression data showed clear expression for FURIN, PCSK5, PCSK7 and MBTPS1 (membrane-bound transcription factor peptidase, site 1) mRNAs in virtually all tested samples. A discovery analysis demonstrated a genome-wide significant (p < 5 × 10(-8)) association with the selected PCSK probes for 1024 variants, which were located at ten independent loci. Of these loci, 5/10 could be confirmed to regulate PCSK expression in two additional and independent sample sets. Finally, a phenotypic analysis demonstrated that a novel cis-eQTL SNP rs4702 for FURIN is strongly associated with both diastolic (p = 0.012) and systolic (p = 0.035) BP levels, as well as peripheral vascular resistance (p = 0.003). These findings indicate that the expression of the PCSK enzymes is regulated by genetic factors, which have biological roles in health and disease.
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Affiliation(s)
- Hannu Turpeinen
- BioMediTech, University of Tampere, Biokatu 8, 33580, Tampere, Finland,
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Vääräniemi K, Koskela J, Tahvanainen A, Tikkakoski A, Wilenius M, Kähönen M, Kööbi T, Niemelä O, Mustonen J, Pörsti I. Lower glomerular filtration rate is associated with higher systemic vascular resistance in patients without prevalent kidney disease. J Clin Hypertens (Greenwich) 2014; 16:722-8. [PMID: 25228202 DOI: 10.1111/jch.12405] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Revised: 07/29/2014] [Accepted: 07/29/2014] [Indexed: 01/22/2023]
Abstract
The authors examined the association between estimated glomerular filtration rate (eGFR), calculated using the Chronic Kidney Disease Epidemiology Collaboration creatinine-cystatin C equation, and hemodynamics in 556 normotensive or never-treated hypertensive patients without kidney disease (mean age, 46 years). Hemodynamic variables were recorded using pulse wave analysis and whole-body impedance cardiography. The mean eGFR was 98 mL/min/1.73 m(2) (range, 64-145 mL/min/1.73 m(2) and one third of the patients had values below 92, while none had proteinuria. In linear regression analyses adjusted for differences in age, weight:height ratio, low-density lipoprotein cholesterol, and sex, significant associations were found between lower eGFR and higher systolic (P=.001) and diastolic blood pressure (P<.001) and higher systemic vascular resistance (P=.001). There was no association between eGFR and cardiac output or extracellular volume. In the absence of clinical kidney disease, lower eGFR was associated with higher blood pressure and systemic vascular resistance. Therefore, early impairment in kidney function may be involved in the pathogenesis of essential hypertension.
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Affiliation(s)
- Kati Vääräniemi
- School of Medicine, University of Tampere, Tampere, Finland; Department of Internal Medicine, Central Hospital of Central Finland, Jyväskylä, Finland
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45
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Hjelt S, Aatola H, Kähönen M, Juonala M, Koivistoinen T, Lehtimäki T, Viikari JSA, Raitakari OT, Laitinen T, Hutri-Kähönen N. Association of thyrotropin with arterial pulse wave velocity in young adults: The Cardiovascular Risk in Young Finns Study. Scandinavian Journal of Clinical and Laboratory Investigation 2014; 74:716-21. [DOI: 10.3109/00365513.2014.953994] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Siiri Hjelt
- Department of Clinical Physiology, University of Tampere and Tampere University Hospital,
Tampere
| | - Heikki Aatola
- Department of Clinical Physiology, University of Tampere and Tampere University Hospital,
Tampere
| | - Mika Kähönen
- Department of Clinical Physiology, University of Tampere and Tampere University Hospital,
Tampere
| | - Markus Juonala
- Department of Medicine, Turku University Hospital and University of Turku,
Turku
- the Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku,
Turku
| | - Teemu Koivistoinen
- Department of Clinical Physiology, University of Tampere and Tampere University Hospital,
Tampere
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere University Hospital, and School of Medicine, University of Tampere,
Tampere
| | - Jorma S. A. Viikari
- Department of Medicine, Turku University Hospital and University of Turku,
Turku
| | - Olli T. Raitakari
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital and University of Turku,
Turku
- the Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku,
Turku
| | - Tomi Laitinen
- Department of Clinical Physiology and Nuclear Medicine, University of Eastern Finland, and Kuopio University Hospital,
Kuopio, Finland
| | - Nina Hutri-Kähönen
- Department of Pediatrics, University of Tampere and Tampere University Hospital,
Tampere
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46
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Trait anxiety mimics age-related cardiovascular autonomic modulation in young adults. J Hum Hypertens 2014; 29:274-80. [DOI: 10.1038/jhh.2014.72] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/25/2014] [Accepted: 07/10/2014] [Indexed: 11/08/2022]
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Leskinen MH, Hautaniemi EJ, Tahvanainen AM, Koskela JK, Päällysaho M, Tikkakoski AJ, Kähönen M, Kööbi T, Niemelä O, Mustonen J, Pörsti IH. Daily liquorice consumption for two weeks increases augmentation index and central systolic and diastolic blood pressure. PLoS One 2014; 9:e105607. [PMID: 25153328 PMCID: PMC4143270 DOI: 10.1371/journal.pone.0105607] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 07/22/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Liquorice ingestion often elevates blood pressure, but the detailed haemodynamic alterations are unknown. We studied haemodynamic changes induced by liquorice consumption in 20 subjects versus 30 controls with average blood pressures of 120/68 and 116/64 mmHg, respectively. METHODS Haemodynamic variables were measured in supine position before and after two weeks of liquorice consumption (daily glycyrrhizin dose 290-370 mg) with tonometric recording of radial blood pressure, pulse wave analysis, and whole-body impedance cardiography. Thirty age-matched healthy subjects maintaining their normal diet were studied as controls. RESULTS Two weeks of liquorice ingestion elevated peripheral and central systolic and diastolic blood pressure (by 7/4 and 8/4 mmHg, 95% confidence intervals [CI] 2-11/1-8 and 3-13/1-8, respectively, P<0.05), and increased extracellular volume by 0.5 litres (P<0.05 versus controls). Also augmentation index adjusted to heart rate 75/min (from 7% to 11%, 95% CI for change 0.3-7.5, P<0.05) and aortic pulse pressure (by 4 mmHg, 95% CI 1-7, P<0.05) were elevated indicating increased wave reflection from the periphery. In contrast, peripheral (-3/-0.3 mmHg) and central blood pressure (-2/-0.5 mmHg), aortic pulse pressure (-1 mmHg), and augmentation index adjusted to heart rate 75/min (from 9% to 7%) decreased numerically but not statistically significantly without changes in extracellular volume in the control group. Heart rate, systemic vascular resistance, cardiac output, and pulse wave velocity did not differ between the groups. CONCLUSIONS Two weeks of daily liquorice consumption increased extracellular volume, amplified pressure wave reflection from the periphery, and elevated central systolic and diastolic blood pressure. TRIAL REGISTRATION EU Clinical Trials Register EudraCT 2006-002065-39 ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Miia H. Leskinen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Elina J. Hautaniemi
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Anna M. Tahvanainen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Jenni K. Koskela
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Marika Päällysaho
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Antti J. Tikkakoski
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Mika Kähönen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Jukka Mustonen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H. Pörsti
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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Aatola H, Hutri‐Kähönen N, Juonala M, Laitinen TT, Pahkala K, Mikkilä V, Telama R, Koivistoinen T, Lehtimäki T, Viikari JSA, Raitakari OT, Kähönen M. Prospective relationship of change in ideal cardiovascular health status and arterial stiffness: the Cardiovascular Risk in Young Finns Study. J Am Heart Assoc 2014; 3:e000532. [PMID: 24614756 PMCID: PMC4187504 DOI: 10.1161/jaha.113.000532] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 01/28/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND In 2010, the American Heart Association defined ideal cardiovascular health as the simultaneous presence of 4 favorable health behaviors (nonsmoking, ideal body mass index, physical activity at goal, and dietary pattern that promotes cardiovascular health) and 3 favorable health factors (ideal levels of total cholesterol, blood pressure, and fasting glucose). The association between a change in ideal cardiovascular health status and pulse wave velocity, a surrogate marker of cardiovascular disease, has not been reported. METHODS AND RESULTS The study cohort consisted of 1143 white adults from the Cardiovascular Risk in Young Finns Study who were followed for 21 years since baseline (1986). This cohort was divided in 2 subgroups: 803 participants (aged 9 to 18 years at baseline) to study the health status change from childhood to adulthood and 340 participants (aged 21 to 24 years at baseline) to study health status change from young adulthood to middle age. The change in the ideal cardiovascular health index was inversely associated with pulse wave velocity (adjusted for age, sex, and heart rate), every 1-point increase corresponded to a 0.09-m/s (P<0.001) decrease in pulse wave velocity in both groups. This association remained significant in subgroups based on the ideal cardiovascular health index at baseline. CONCLUSIONS The change in ideal cardiovascular health status, both from childhood to adulthood and from young adulthood to middle age, was an independent predictor of adult pulse wave velocity. Our results support the concept of ideal cardiovascular health as a useful tool for primordial prevention of cardiovascular disease.
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Affiliation(s)
- Heikki Aatola
- Department of Clinical Physiology, University of Tampere and Tampere University Hospital, Tampere, Finland (H.A., T.K., M.)
| | - Nina Hutri‐Kähönen
- Department of Pediatrics, University of Tampere and Tampere University Hospital, Tampere, Finland (N.H.)
| | - Markus Juonala
- Department of Medicine, University of Turku, Turku, Finland (M.J., J.A.V.)
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland (M.J., T.T.L., K.P., O.T.R.)
| | - Tomi T. Laitinen
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland (M.J., T.T.L., K.P., O.T.R.)
| | - Katja Pahkala
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland (M.J., T.T.L., K.P., O.T.R.)
- Paavo Nurmi Center, Sports and Exercise Medicine Unit, University of Turku, Turku, Finland (K.P.)
| | - Vera Mikkilä
- Division of Nutrition, University of Helsinki, Helsinki, Finland (V.M.)
| | - Risto Telama
- Department of Sport Sciences, University of Jyväskylä, Jyväskylä, Finland (R.T.)
| | - Teemu Koivistoinen
- Department of Clinical Physiology, University of Tampere and Tampere University Hospital, Tampere, Finland (H.A., T.K., M.)
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories, University of Tampere and Tampere University Hospital, Tampere, Finland (T.L.)
- School of Medicine, University of Tampere, Tampere, Finland (T.L., M.)
| | | | - Olli T. Raitakari
- Department of Clinical Physiology and Nuclear Medicine, University of Turku, Turku, Finland (O.T.R.)
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland (M.J., T.T.L., K.P., O.T.R.)
| | - Mika Kähönen
- Department of Clinical Physiology, University of Tampere and Tampere University Hospital, Tampere, Finland (H.A., T.K., M.)
- School of Medicine, University of Tampere, Tampere, Finland (T.L., M.)
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49
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Koskela JK, Tahvanainen A, Haring A, Tikkakoski AJ, Ilveskoski E, Viitala J, Leskinen MH, Lehtimäki T, Kähönen MA, Kööbi T, Niemelä O, Mustonen JT, Pörsti IH. Association of resting heart rate with cardiovascular function: a cross-sectional study in 522 Finnish subjects. BMC Cardiovasc Disord 2013; 13:102. [PMID: 24237764 PMCID: PMC3832902 DOI: 10.1186/1471-2261-13-102] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 11/05/2013] [Indexed: 11/30/2022] Open
Abstract
Background High resting heart rate (HR) is associated with increased cardiovascular risk in general populations, possibly due to elevated blood pressure (BP) or sympathetic over-activity. We studied the association of resting HR with cardiovascular function, and examined whether the hemodynamics remained similar during passive head-up tilt. Methods Hemodynamics were recorded using whole-body impedance cardiography and continuous radial pulse wave analysis in 522 subjects (age 20–72 years, 261 males) without medication influencing HR or BP, or diagnosed diabetes, coronary artery, renal, peripheral arterial, or cerebrovascular disease. Correlations were calculated, and results analysed according to resting HR tertiles. Results Higher resting HR was associated with elevated systolic and diastolic BP, lower stroke volume but higher cardiac output and work, and lower systemic vascular resistance, both supine and upright (p < 0.05 for all). Subjects with higher HR also showed lower supine and upright aortic pulse pressure and augmentation index, and increased resting pulse wave velocity (p < 0.001). Upright stroke volume decreased less in subjects with highest resting HR (p < 0.05), and cardiac output decreased less in subjects with lowest resting HR (p < 0.009), but clear hemodynamic differences between the tertiles persisted both supine and upright. Conclusions Supine and upright hemodynamic profile associated with higher resting HR is characterized by higher cardiac output and lower systemic vascular resistance. Higher resting HR was associated with reduced central wave reflection, in spite of elevated BP and arterial stiffness. The increased cardiac workload, higher BP and arterial stiffness, may explain why higher HR is associated with less favourable prognosis in populations. Trial registration ClinicalTrials.gov, NCT01742702
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Affiliation(s)
- Jenni K Koskela
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere FIN-33014, Finland.
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Kangas P, Tikkakoski AJ, Tahvanainen AM, Leskinen MH, Viitala JM, Kähönen M, Kööbi T, Niemelä OJ, Mustonen JT, Pörsti IH. Metabolic syndrome may be associated with increased arterial stiffness even in the absence of hypertension: a study in 84 cases and 82 controls. Metabolism 2013; 62:1114-22. [PMID: 23557592 DOI: 10.1016/j.metabol.2013.02.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 02/20/2013] [Accepted: 02/22/2013] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the hemodynamic characteristics of metabolic syndrome (MetS) in the absence and presence of hypertension. MATERIALS/METHODS Altogether 166 subjects without previously diagnosed cardiovascular disease, diabetes, or antihypertensive medication, were allocated to four groups: control, hypertension only, MetS without hypertension, and MetS with hypertension (mean age 44-46 years). Cut-point for hypertension was blood pressure ≥140/90 mmHg. Other criteria of MetS were as defined by Alberti et al. 2009. Hemodynamic variables were measured using whole-body impedance cardiography and pulse wave analysis. RESULTS Pulse wave velocity was higher in hypertensive and normotensive subjects with MetS than controls (p<0.05), and in the hypertensive MetS group than subjects with hypertension only (p<0.05). Aortic pulse pressure was higher in the two hypertensive groups than the two normotensive groups (p<0.05). Systemic vascular resistance index was higher in the hypertensive than normotensive MetS group (p<0.05), and in the group with hypertension alone than in controls (p<0.05). Heart rate was higher in the hypertensive Mets group than in controls and subjects with hypertension only (p<0.05). Cardiac index did not differ, while stroke index was lower in both groups with MetS than groups without MetS. Augmentation pressure was higher in the hypertensive MetS group than in controls and normotensive MetS group (p<0.05). CONCLUSIONS Pulse wave velocity, an acknowledged marker of arterial stiffness, was associated with MetS even in the absence of hypertension. This emphasizes the importance of the prevention and treatment of MetS.
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Affiliation(s)
- Pauliina Kangas
- School of Medicine, University of Tampere, 33014 Tampere, Finland.
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